Are we talking about completely new-new things what werent in TSW or TSW content to be added?
Anyways…
From TSW:
Completely new:
Going to sound like a broken record, but I’d like to see the Auxiliary Weapons back the most. I thought they added a lot to the gameplay and I miss my chainsaw. By extension, I’d like to see the old missions to get said aux weapons back as well.
That’d be the one main thing I’d like to see in SWL, but here’s a few other things since everyone has been listing multiple:
Missing Faction Missions: The ones you got to play for moving up in the ranks. I thought they were pretty important to the story and made you feel more connected with your faction choice.
Increased Overall Difficulty: Just to the level of where TSW was. I hear a common complaint that the endgame stuff is too easy in SWL.
Revamped AEGIS System: I thought it added a new depth to Tokyo. Perhaps make it optional for the people who didn’t like it?
Revamp Skills a Bit: Probably too much to ask for, but add more abilities or bring back resource building from TSW. Running out of weapon energy in SWL can get a bit tiresome. In TSW, I liked how the abilities for both weapons worked in tangent with one another, allowing you to keep firing if you kept up with the rotations. Or perhaps just having one more active ability slot (TSW had 7 slots; you only have 6 in SWL) because my secondary feels a bit neglected.
Player Housing: Would be nice. I’d love an apartment in London.
Cutscene Theater: The ability to re-watch all the story and mission cutscenes you’ve already seen. Perhaps you can access a TV in the player housing to view them?
But most importantly the implementation of microwaving your sardines. 
the arrival of Africa and our little huts made me want for the first time of housing.
I wanted to buy a cabin with my pupil points, to decorate this house, to collect carpets to put in the wall in the quests, objects to decorate in the agents’ bags, colors of blankets to buy in store, African armchairs to loot in donjon, tamtam to collect in achievements, … For the first time in 6 years of TSW / SWL I wanted a home, just to me .
I hope with all my heart that there will be dungeons in the future. It is a repeatable content, which makes remain a part of the population. The same 5 dungeons for 11 months is very very boring.
Put back the Flappy and Edeilon raid and the group scenarios, it will leave time to prepare new group content without having to spend a lot of credit to adapt these raids to the new skills available. It’s an easy and quick way to satisfy a part of the HL community that drives new players behind it.
Regularly we could review a community event (1 x month for example), in the style of golems, Hel, Bad gadekeeper,… Each event, even small brings back many people in the community, it is a good way to retain .
For loots, start a contest on the forum, the community knows how to mobilize to create clothes, there is plenty of masterpiece of fans in our locker room!
btw wouldn’t this be eaiser on reddit? I mean people can submit ideas and the community can vote those ideas up or down.
I can’t be the only one who wants more investigation missions more than anything else? Preferably some really ARGy ones. Bring it on!
More group friendly things to do.
Similar to boss callouts in different zones or opening those party bags in groups like in TSW. It doesn’t have to be battle related, it could just be for RP purposes. Or PVP like Fight Club with CQC fists and kicks. Or whatever. I miss that kind of feeling.
Alternatively,
-Alternate Idle Stances w/ Weapons out (different ways to hold a weapon)
-Alternate Running Animations w/ Weapons out
-Alternate ways to Sheathe/Unsheathe a Weapon Animation (like a sword on the back instead on the hip, different ways to hold Pistols or a Shotgun)
-Emote to Hug Pets/People
-More Group Emotes (like the Shoes that enabled group dances)
-Group Vehicle Mounts (or a group mission that involves one guy driving and the others using weapons to fend off enemies)
-Clothes that change appearance depending on stance (for example, a visor - it closes if you’re in battle and opens if you’re not)
I know you said one thing, but I couldn’t help it.
Also game bug fixes, combat balance, stability, story & content takes priority and all but yeah. 
Would be awesome to have a testing room to try different weapons before spending time and money levelling them. Maybe it could be done like a scenario, with an armoury to pick a weapon to try (dependant on having the active/and passive skills unlocked).
Story, story, story. Like I’m not really sure why anyone is playing primarily for endgame or PVP when TSW’s strength was always story from the start (much less the inevitable budgetary contraints of a F2P MMO hampering what kind of content can be made and to what amount/quality). But I’m literally only here for story and I will happily pay for more if need be.
Also, I would totally considering buying more aurum if there was more clothing options regularly added as a direct purchase for aurum, especially more mundane looking clothing, given part of TSW’s uniqueness is the modern setting, and modern fashion is pretty much limitless even without getting to the goofier things that have been in the loot boxes. I’m a roleplayer so I like having a functionally infinite amount of clothing options for my character and if I can get that clothing without playing loot box roulette (tho I do understand and sympathize as to why they’ve been added), I will definitely be pretty inclined to buy the aurum to buy new clothing if I can do so directly.
Does wanting the missions regarding Dame Julia and the Pyramidion count? That’s the content I personally REALLY miss.
(In b4, I guess the same Dragon-specific Mission, too. But that was Bong Cha. We still got Bong Cha. Kinda.)
Please please please add missing dungeons (on all tiers), SH, Fac, HF, MFA and MFB (maybe Penthouse too? It was kinda funny…), and my raids!!! I miss Eidolon and Flappy so much 
And Im sure they miss me too! And PvP… I’m personally fine even with Fusang, since it does not need to be reworked (except Custodian’s HP’s and dmg done).
Those are my personal top priority which basically kept me playing TSW too when I had everything already. Current state of group content is… Bad.
A 3 month content update cadence. Permanently.
If we are talking something new. Make fistfights available between players (could be fun for RP)
Less new, i would love to see the missing TSW content too. I fully understand it’s not the focus, and that those dungeons were probably the more hard ones to transform from a mechanical standpoint. I would be sad if we didn’t get them back though.
I would like to see the TSW auxiliar weapons in SWL as full weapons with unique special actions like the other weapons, some of the faction rank mission so it makes sense the difficult of ascending through your faction and the special pvp pve outfits exclusive to each faction like templar armour bought with the black bullion but this one with MoFs. And dark agartha release now. Pls make make the chance of obtaining agents from missions higher.
PvP
I can understand Fusand and El Dorado might have a lot of tweaking and reworking things, but bring us Stonhenge back, just make if factionless so it pops more often, you have all the code you need already there, you just need some duct tape and testing.
So many things… so many. I have lists. But to pick just one is pretty easy. I’ve been wanting this since TSW beta.
Lingerie layer.
Like the tattoos and piercings that were supposed to be a thing, way back when. Maybe they’re all part of the same system in different locations, altering the skin texture under the clothes. Lingerie would have to overlap tattoos, of course. Lingerie and piercings might have interactions and clipping, so maybe those share slots. Some of the slots. Tongue lingerie is not a thing, but body jewelry that doesn’t involve piercings is. Thin gold belts, welded anklets, that kind of thing.
If I had a second choice, it would be another thing I’ve wanted since TSW beta. Actual stealth mechanics incorporating lighting, noise, visibility, clothing, posture, speed, duration of exposure, and visual spectrum of observer (cameras and supernatural creatures and night vision goggles or just crazy but physically normal cultists). You know, like actual stealth games have had since Thief: The Dark Project.
Bug fix …
Hi Nirvelle, and congratulation to you.
I can hardly ask only one thing (sorry) but I think the thing I want more than others is :
There few more things I would love to see in SWL (classed by importance) :
I really love SWL (I’m here since TSW) but I find it too easy and, because of it, a little boring. I would kill to have hard boss fight which can be a challenge.
I would like to see group content improvements.
Example: Add back in all the old Dungeons, Raids, 5-man Scenes, etc. and create new dungeons and raids, etc. Make them a priority.
Example: In zone events and lift the player max per instance so that we can group up and do stuff together. Maybe something like a boss train or make existing rares repeatable and part of a chain of dailies.
Example: Nightmare Quests. Make nightmare versions of the instances so that players can do the story and other quests over again as a group for added rewards and perks.
I want that every message more than one thing to be deleted from this thread 