With Creators update every player can become a game broadcaster with in game broadcasting with http://Beam.pro/Xbox built right into Windows 10.
Custom tournaments coming to Windows 10. Create single or double elimination tournaments for your friends and viewers instantly. Integrates with XBOX Live and does the stats automatically. No need to administer scores and allows the creator to concentrate on playing.
XBOX play anywhere allows you to play on Windows 10 and XBOX One seamlessly after only purchasing the game on one device.
Dolby Atmos support coming to XBOX and Windows 10 live for bluray.