Well that sucks.
I agree with the comments about it being the Xbox Uncharted. There were lots of comparisons about the 2013 game being like Uncharted, with a lot of people questioning if the Playstation needed 2 games if that style. Obviously MS want this for themselves and have convinced SE to make it exclusive, presumably offsetting the lower sales with promises of a long running multi game franchise and making the devs job easier by only building for a single platform.
I can fully see the business reasoning behind this. Its just such a shame that they successfully (ignoring their own viewpoint) relaunched the Tomb Raider franchise across platforms, only to then drop all but XB1 after 1 game.