Here is what the Facebook page says:
Did you know you can visit the official Poptropica creators’ blog for more sneak peeks and behind-the-scenes looks at Poptropica? Right now there are sketches of some creepy looking monsters that might appear on a future island! Visit http://blog.poptropica.com/
So let’s look at those plant monsters and here they are. The second one is much scarier than the first.
These are probably going to be on the island that we saw sneak peeks on.