+1 to OP.
I think Nostalgia is a pretty big factor for the people who have subscribed already.
I haven’t played at all the last 15 years, I hopped on once or twice and tried to get engrossed and it didn’t work. All players felt too spread out, game had a difficult learning curve beyond missioning and levelling (and was famous for it).
I’ve known and heard about the bad decisions Funcom have made, I even remember when AO was first released from retail and there was a significant memory leak problem amongst other things and it caused a lot of unhappiness. I still ended up playing though because the opening environment and people felt so alive.
And that is where I came back - for the fact of good times I had, when Subway, OA and West Athens was busy and active and everything felt alive. And thats where a lot of MMOs fall start to fail , even Blizzard have made huge mistakes with Warcraft (flying for all of Azeroth? Talk about dispersing players… - Ruthless PuG groups that will kick casual players etc and more).
You need to create belonging and closeness for a community to thrive and this will very much do that or at least help. I hope the pace of cap increases and expansions is well thought out.