While EA has not officially confirmed that they have the publishing rights for Titanfall 2, if they do have them it almost certainly means that franchise will go multiplatform with the next release. Which means the whining of all of the PlayStation 4 owners about not getting Titanfall on their console will end.
Another well connected source tells us not to rule anything out just yet. Microsoft has written big checks before and might opt to do so again to keep the series Microsoft platform exclusive. The question really would be if EA would consider taking that kind of money to do it. Stay tuned.