SilverWook said:

Didn't Abrams publicly state he wasn't interested, (and committed to the Trek movie franchise) just a couple weeks ago?

Yeah right around the end of December:

“I quickly said that because of my loyalty to Star Trek, and also just being a fan, I wouldn’t even want to be involved in the next version of those things,” Abrams told Empire. “I declined any involvement very early on. I’d rather be in the audience not knowing what was coming, rather than being involved in the minutiae of making them.”