I would love the game to be released as early as possible but as DarkHawk said they should take as much time as they need as they were always rushed to realize the games as quickly as possible which makes the games lack features they wanted but they still where greate games.
As for now i am happy with beta which added some new content that i still need to explore and eaven without beta i have already spent 50 hours on it messing around killing everyone and so on.
And as beta have bean relised i dont think it will take them long till they relise the game i think it might take them up to 2-3 months if not more but i will weate as i love the game and i think they deserv to use what time they want to do everything right