The proposed opening of Trek 09 was to feature the Enterprise, not the Kelvin and Captain April, not Robau. Bob Orci has replied to comments at Trek Movie saying that the change in timeline has changed April more than others.
Has there ever been a credible source on that? IMDB is the only spot I see claiming that.
Really, if that story is true, why didn't they just have April commanding the Kelvin anyway?