Microsoft have announced their plans for Gamescom 2016, and they do not include a media briefing.
Coming by way of a post on Xbox Wire, Aaron Greenberg, General Manager for Xbox Games Marketing stated:
While we will not be hosting a media briefing this year, we’re planning a new and more intimate Xbox FanFest experience for our fans across Europe and worldwide attending gamescom 2016. We will be sharing more details on our gamescom 2016 Xbox FanFest soon.
It's unclear what Microsoft's plans are for the FanFest event, but the post does mention that attending fans will be able to get their hands on some of the company's upcoming AAA games like Gears of War 4, Forza Horizon 3, Halo Wars 2, ReCore and Sea of Thieves, along with a solid lineup of ID@Xbox titles including We Happy Few, Everspace and Cuphead.
Gamescom 2016 is held in Cologne, Germany, and runs this year from August 18-22 (New Zealand Time).