BuddyPress 1.5 is really close to release now (really!). I’ve started on a much-needed update of Welcome Pack, to bring it up to date for the latest versions of WordPress and BuddyPress, and planned features which will enhance the email customisation options.
After that’s done, BP Labs will probably be next, as I want to continue building on the Akismet integration; I think that will be really popular once word gets around.
Then Achievements. 🙂