Well, I know, what I don't want: more stuff, that only supporters get (or non supporters have to post a ton of posts for). Don't get me wrong, I absolutely understand, they get all the cool stuff, because they spend their money for the servers and stuff (and some of them spend a ton of money), but just remember, that there's a good amount of non supporters who don't have them moneyz to do that who might feel like getting taunted.
Stuff, that could be improved...
1. Forum interactivity
Subsections always seem just to care for themselves, but why not have some events connect two or more sections together? Kind of like how you can transfer your Pokemon from gen 3 to get 6, if you know, what I mean.
That would also counteract, what was going on in the X and Y section, a little bit better (everyone goes to the ORAS section and X and Y is pretty empty for the most part)
Other examples: game creation contests (ROM hackers vs. game developers), art generation (Art and Technology sections together), etc.
2. Featured sections
Kind of like the announcements, but instead of some event getting advertised, there could be some text about one of the forums once in a while.
3. News section
As opposed to the Announcements Section which only shows updates for the forum itself, there could be a section, where only a certain amount of people are allowed to post and who look through all kinds of section, checking for really interesting threads that they can advertise in said News section.
Like, if there is a really interesting thread that popped up in PG they could write a small news entry and those people who normally don't visit PG read this entry and just need to follow a link that's provided, that leads them directly to said thread.