Nobody knows exept for the poptropica company.
This answer will constantly change. For the list of current islands, see the related question below. New islands will be announced on the Poptropica Creators Blog before they are available for play.
When they are released, they will appear on the island map. Until then, there is no way to play them. The label on an island will indicate if members only are currently allowed to play. As of late 2010, previews or sneak peeks were available shortly before the island was released, and they were labeled as such.
Vampire's Curse Island was available for free general play on March 22, 2012. (three weeks after the demo began on March 1)
You can only play islands that are on the island map. Until then, they are not even on the servers.
The Early Access for paid monthly members began on February 21, 2013 and the island was available for general free play on March 14, 2013.
You have to jump over him.
Mystery Train island is came out on the 9th of September. Only members were aloud to play the whole island. Nonmembers had a demo. Mystery Train Island is coming out on the 7th of October for everyone.
Thats wrong you can play it at school and at home some schools dont alow kids to play poptropica at school!
"Monster Island" was one of the cancelled islands of Poptropica. Some early games and items were shown on the other islands.
go out and play any island any were.
MAYBE THANKSGIVING???
you play music with your flute