Fortnite was taken to a brand new level recently, when it started a crossover event with Marvel's Avengers franchise. This event has now run its course, as it will be ending on May 15, 2018.
Within this event, players could snag the Infinity Gauntlet and transform into Thanos. A lot of hilarity and fun ensued. The news of it's closure came directly from the Fortnite Twitter account with the phrase, “Wield the Gauntlet one last time.”
It remains to be seen if Fortnite will team up with Marvel again in the future for some more crossover events. Even if that doesn't happen, this has certainly opened the door for Epic Games to team up with other big names in the entertainment industry.
I'll hold out hope for another Marvel crossover in the form of Fortnite x Deadpool, but we'll have to wait and see.