Some of the mudslinging towards newer fans that came in through the JJ movies really irks me. Star Trek is not the pinnacle of intelligent sci-fi. There are so many superior examples of that, and it is embarrassing to hold Trek up high at a level that it is not meant to be at.
What Trek is is entertainment: adventures with phasers, starships, alien planets and all, and the characters that go through those adventures together.
So as to which universe Future Trek should be set in, I don't mind either way, but I do think the alternate reality is the way to go. It's already been set up and a series set in the same universe has the potential to go anywhere in terms of world-building.
At this point I think I'll be happy with whatever new Trek we get.