The idea of one Gameplay and Theorycraft sub-section is nice. The content in it should be very fact-based and quite different material from general discussion. It would also help those who are new to SWL and are interested in theorycraft to zero-in on a specific category to browse.
The same reasoning could be applied to creating a sub-section for a Marketplace; and it would help connect buyers and sellers who are in different time zones.
If you have too many categories, Support and Bug Reports could be merged as they are related topic and content-wise. Unless, there is a reason from the Dev side that they want it separate. In the long run I can see one being more used than the other.
Otherwise I think everything that used to be in the old forums and Reddit you have covered with all the other sub-categories.
[Misc] I request that the Reddit link below (sorry haven’t looked up formatting) be stickied so it is #1 post on the main Reddit page:
It would be great (but unexpected) if you were also able to post on Reddit that Forums and Discord will be the main community channels.
This will hopefully minimise your (and other CM’s; and devs) hassle of now having 3 discussion places to moderate and respond to. I hope someday you get the go-ahead from Funcom to outright close down Reddit as it is now redundant.