I'm not pretty sure what's to do/ code next, I remember some points by Ganderoleg about improved AI (enemies that look for certain events and the like) but I forget more than I remember. Thus I've created a (public) to-do-list for our project which can be found here:
http://www.toodledo.com/views/public.php?id=td4cf6fbf111862

Please add everything to the list what needs to be in the game, the list is not restricted to code suggestions.

(PM me for account information.)