X018
Microsoft announced an Xbox focused event for November 10, 2018 in Mexico City. They're calling it X018 and it's actually the fourth Xbox FanFest event.

The first mention of this year's event was revealed by Phil Spencer on the latest episode of Inside Xbox. The event will allow 10,000 fans to be there in person with everyone else able to watch it streamed live.

In addition to this big reveal, Spencer also announced that Xbox One is getting full mouse and keyboard support. The first game to make use of this new functionality will be Warframe. This announcement also includes a hardware partnership with Razer.

There is supposed to be a website for X018, but I can't seem to access it at present in any browser. It will probably be working by the time you read this. Hopefully.