Update - May 26
Microsoft confirmed the date of its joint showcase with Bethesda as June 13 in a new tweet.
The announcement promised new world reveals and new games for Game Pass, but made no mention of how many brand-new games we'd see.
Jeff Grubb's often been a reliable source of news in the past and right now, he's popping up all over the place. Having stated that there's a "90% chance" of Starfield being released this summer and "confirming" that a new Guardians of the Galaxy game is coming, he may have given us Xbox's E3 conference date too.
Speaking during his latest episode of Game Mess, Grubb stated this will take place on June 13, E3 2021's second day. Specifically, he stated:
I believe that's going to be in the morning in America. So Pacific Time, it should be in the morning. I can't remember off the top of my head, I think it's 10am Pacific Time but I could be wrong.
Reports Suggest That Xbox's E3 2021 Conference Is On June 13
During this event, Grubb also confirmed that Microsoft is scheduled to make an official announcement at some point this week. If so, they'd be the second publisher to confirm their times, after Ubisoft previously announced their "Ubisoft Forward" event would occur on June 12.
If confirmed, we'll be sure to keep you updated through our E3 2021 hub, but until then, remember to take any rumours with a pinch of salt. However, it doesn't sound like we'll have to wait long for confirmation.