The Mystery Entrance

Hey guys, welcome back to a new update post!
I feel a little better, and yeah, I'm going to school. But that's not the point of this post. Take a look at the cave in Mt. Shiveer below. 

Lately, there has been a lot of speculation whether or not this will lead to a new land. In one of Aparri's videos, he mentions the idea, too. If you want to find it by yourself, it is in the top left corner of Mt. Shiveer. Now, what is your opinion on this? Do you think it could lead to a new land?