I'd love to see users game ratings and reviews and if it's possible, to use only one account for all, chat, forum, wiki, page etc.
I've been working really hard on this, we're actually using a different forum for technical reasons on the new site, but I've managed to import all threads/posts to the new one, create permanent redirects from old URL's to new ones, and also saved all user accounts (which was tricky!)
So on the new site, you have one login, for forum, blog comments, reviews, everything! I hate disconnected user systems so have worked hard to make the 1 login for everything. So, your current username/password on this forum will automatically work on the new site, and all your posts will be transferred over as well.
I don't think PM's, polls etc are going to transfer over, so you should be aware of this if you have anything important in them.