I can live with the new release date. Sure it's a bit of a let down, but that just means there will be more time for them to make the new game even more awesome! I know I should care about how well they market the movie for the sake of the future of the game series, but I don't. I am more concerned about real game development, which I think matters most.
I would care about the development of the movie, but we don't need to worry about that because the production phase is done. It's just great they've found a good solid release date for the film which isn't so busy, and gives them enough time to sort out a good distribution plan.