There are rumors about Windows 10 exclusives coming in near future, Gears of war 4, Forza motosports 6 and Forza horizon 3 are to be expected to come on windows 10 only powered with DX12.
Forza Motosports 5 is already running on PC with DX12, Microsoft said that Quantum Break wouldn’t be coming on PC but as now we can see Quantum Break released on the Xbox One and PC, simultaneously.
Forza Horizon 3 is coming for PC through the windows store according to WPDang’s sources – while Forza Motorsport 6 will receive its own special edition on the PC. Gears of War 4 is in development for the PC right now.
So, these 3 titles are expected to windows 10 exclusives.