Citadel now uses Unity 5!
After a few months of work, Citadel is up to par with its previous version on the DarkPlaces engine. Check it out:
Unity is much more friendly in terms of UI development. The HUD is shaping up nicely and framework code exists for the elements that aren't fully developed yet.
Also, all assets are now available via GitHub! Check out progress, follow milestones, and jump on board. Feel free to sign up and assign yourself to a task. Citadel - GitHub
With Citadel now fully open source, hopefully we can see the number of contributors increase. Already there have been more people contacting to join. We are welcome for all the help we can receive, even if it is only as small a contribution as making one or two 3D models.
As far as release dates go, we are now taking more of a "When it's Done" approach, though if possible we are shooting for a Christmas release date. The main part that could delay that is enemy creation. Animators are more than welcome to join and help out!
All the Best!