From what we know MS paid the entire development cost for the games development, plus costs for all marketing, what this essentially ends up then is a free game development cycle for Square. They will likely look at TR1 sales in comparison being multiplat and decide to proceed with another but not make it exclusive to xbox (or anything else) ever again. After MS locked down the release date to the same one as Fallout 4 and didn't consider changing it to early 2016 or even December, I question if Phil Spencer is the right man to lead the company or if he should be replaced with someone who hasn't undergone a full frontal lobotomy.
Secondly, Square's new boss recently said he believes games need 3 installments before he decides if they have a viable long term future, TR was game 1 in a reboot, game 2 has bombed but in his eyes 3 may have a chance. I think we will see another, but I seriously doubt it will have a larger budget than this one did. In terms of goodwill with customers this has been the worst PR own goal I've ever seen a 3rd party company commit. Bayo 2 is different as it would never have existed anyway, this game sold at the right launch date on multiplat (say Jan 2016) could have easily passed it's predecessors given the game drought and the constant pushbacks of Uncharted 4's release date. This has been a total misfire.
