When I played Anarchy online one of the things that one lead dev started that I loved was a monthly dev update. In that the lead dev would basically give a little look at what all was being worked on it would shed light as to what direction they were trying to take the game.
I think something like that would help Evolution (seeing as it is a beta server in constant changing state) in that the a lot of stuff that is going on behind the scene that players do not know about kind of come to the surface.
Sadly this does take some time out of an already busy schedule but I always found it to be a nice addition and players had a better grasp of things that went on (the guy who started it also did weekly updates which might have been a bit much).