Recently, this location has been relatively popular, mainly due to Tfue. It is possible that the information from him reached the people of Epic, though this is probably just a coincidence.
Sypher, one of the popular YouTubers, recently asked Tfue under what condition he would return to Fortnite. A very interesting answer was given:
When Grotto is back in the game.
Rather, no one expected any further continuation of this story, and yet the water level indicates that this location does indeed have a chance to return.
Is Epic trolling, or was it planned?
After only a few days, the water level in this location decreased. Leakers aren’t sure yet if this means anything, but there has clearly been a change here. Is it related to the words of Tfue? It’s hard to say, although it looks more like a complete accident.
At the moment, this does not mean the return of the location, it is difficult to understand why Epic decided to make such a change and what is behind it.