I was personally expecting two particular things for the official release : Weather (mostly wind clouds and rain), and a more "finished" update to the graphics (mostly for the celestial bodies) Now, don't get me wrong I am not part of the people that think a game should be judged by its graphics, I played KSP for over 200 hours and I am looking forward to the release to get back into it. Also, I'm not trying to say that KSP should be overly detailed I think the video game industry have enough example of games such as Journey which have simplistic yet really neat graphics. For exemple, when I launch or land a spacecraft and see as I approach or leave the surface all these very obvious small and repeating patterns, and the way the water connect with the lands, to me it seems like an unfortunate missed opportunity to bring more atmospheric and ambient feeling. Further, If the collision against trees and rocks is not going to happen, that would be yet another big immersion breaker. Sorry for my english, I'm just giving my opinion. Edit : I forgot to mention re-entry damages and g-force effects that I was expecting because It's partially implemented. Even though I understand that they would increase the difficulty waaay up for certain person, the game now has checkable options for it's difficulty so I was still expecting it to be in 1.0.