The Xbox One is selling terrible compared to the PS4. In some regions like Germany or France it gets outsold by the Wii U. In Japan nobody cares for the console. Microsoft is losing much ground in all these regions. They need to move on in order to get back what they once "owned"
And it looks like that that is Microsoft's plan. Every formerly announced Xbox One exclusive is coming to the PC. They don't even care to sell more Xbox Ones. The bring these games to the PC because they may not be profitable on the small userbase of the Xbox One. Maybe they will port some big upcoming games like Gears of War 4 or Scalebound to the Xbox Two.
What do you think? IMO everything points towards that Microsoft is planning to replace the Xbox One ASAP.