Well, everyone already speculated this I think... Now it's official. Titanfall 2 will not be a Microsoft exclusive.

http://www.gamespot.com/articles/report-ea-secures-rights-to-titanfall-2/1100-6418404/

EA probably only made the deal because they didn't realize it would be such a hit.

EDIT: to be fair, they're saying "EA CFO Blake Jorgensen said previously that he is "sure" that potential sequels to Titanfall could come to PlayStation and/or Nintendo platforms." Who knows what they'll say if Microsoft throws the bank at them. So I guess the titel of the thread should read, "May not" instead of "Will not"