I don't know what they are going to do this year. All I know is that their #1 platform is the PC. They have been gradually integrating the XBox brand more and more with the PC. I expect them to do something new this year that will somehow integrate XBox and PC even closer together.
What specific form will that take? I have no idea. It might mean more exclusives or no exclusives, or something that makes people go "what the hell did I just watch?" I know that I still get a good laugh from the whole "Minecraft in 4k" reveal. I'm sure whatever they do this year, it will be interesting to watch.