Well, this is the site suggestion AND help board, so the fact that nobody's asked for help on anything is kinda a clear indicator that you guys must be doing SOMETHING right.
Sides, I don't really have any new suggestions that would "wow" the community, to be honest. The only thing I can think of is the whole "more emotes" thing, which has been asked to death, and is already apparently under way. So, besides that...maybe...build upon the forum's current "theme changing" system? You have the old board type and the new board type, but maybe you could throw in themes based around certain charaters, like Klonoa, Hewpoe, Lolo, Popka, Balue, Joka, Guntz, ect?