Super Villain Island

The Unnamed Villain Island is most likely going to be the 30th Island on Poptropica. It features Dr. Hare, the Black Widow, Captain Crawfish, and the Binary Bard.

Poster Mystery
I just figured something out. If you put the Dr. Hare poster, the Black Widow poster, the Captain Crawfish poster, and the Binary Bard poster together, they'll fit together perfectly, like they're part of a big poster. Although, if you look to the very right of the Binary Bard's poster and the very left of Dr. Hare's poster, you'll see what seems to be a black area which looks like space, which seems to hint the ends of the poster.