RUMOR - Is this a tease of Fortnite getting another Avengers tie-in?

As we've already shared, dataminers combing through Fortnite recently found some data pointing to Thanos' return to the game. There was a limited-time mode where players could transform into Thanos and wreak havoc, and many are hoping that the content found by dataminers signals another event to tie in with Avengers: Endgame. Now we have a tweet that could certainly be a tease of that content.

The tweet above comes from Donald Mustard, Worldwide Creative Director at Epic. Mr. Mustard is clearly referencing Fortnite here, as Robert Downey Jr. is wearing a Fortnite shirt in the pic. You also know that Mr. Mustard has to be well-aware that fans are already talking about a Thanos return in the game. Even Geoff Keighley of the Video Game Awards' fame replied to the tweet with a pair of investigative emoji, so it seems he believes something to be up as well.