Last week a strong rumour surfaced suggesting the Ariana Grande Rift Tour concert this week teased Kevin's appearance on the current map.
Fortnite's Kevin the Cube the crossover with The Suicide Squad movie – suggested Kevin would return this season.
This now seems more likely, as the purple Cube was spotted during the Ariana Grande concert. Towards the end of the Rift Tour, players flew through a weird memory vortex thing that showed images from Fortnite's past.
One of these was of Kevin, but as fans have pointed out, in the image the Cube is not on the Season 6 map but instead appears to be on the current Fortnite Season 7 map – which it's never been on before. Combined with the leak, it does seem like Epic is teasing the return of the mysterious Cube to the game.
https://twitter.com/OMGitsAliA/status/1423773897007194112
that seems likely to begin on September 13 and will likely feature a crossover with Naruto from the Shonen Jump anime series. As for Kevin the Cube, we'll have to wait and see.