I want a new database modeled after the GTX0 software one, but with a few caveats:
Registration only. None of this confusing username/password crap.
A very closed ecosystem -- accounts can only be invited by other accounts and who invited them is indicated in the database.
The branches concept hardcoded in.
Forum/branch-based permissions for moderation (I guess I'll get to this when I get to this).
The capability of having multiple parsers, and pre-parsing messages for faster load time.
Real-time integration so people don't sit there refreshing the page.
Subforums -- things like decisions voting will need to be handled in their own forum but will also need to be linked to a parent forum. Large-group forums can optionally aggregate or not aggregate subforum content.
