Activity Feed: If you haven't seen it yet, we also recently added "Top News" as a beta to the site. Among other things, this feed pulls in Facebook and Twitter account posts into the Top News activity feed. We'll be making additional visual improvements to this feed, implementing some real-time abilities for new activity items, and moving this feature out of beta.
Member Categories + Badges: This project will also include a way for us to create custom badges. This will be an excellent way for you us reward or identify admins, featured members, or just plain special people on Think Atheist.
Working On It
Mobile Update: Not everyone is aware that there is a mobile version ThinkAtheist. (It's located at thinkatheist.com/m.) If you are aware of it, you'll be very happy to hear that we are working on a redesign of this mobile interface that will be a giant improvement. This is one of the largest projects we've undertaken to date, and it's vitally important. The beta for this will be coming soon! :]
Blog Update: The blog functionality on Think Atheist is ready for a re-do. We've gotten a wealth of feedback from members about what they'd like to see done differently with the blog feature. We have a lot of work planned to make the blog more powerful and much more visually appealing. We'll share more details as this project unfolds.
New Commenting Options: Provide the ability to allow non-members to join in the conversation by using third-party commenting services (e.g., Facebook/Twitter comments).