It was more rumor, and even this doesn't really mean a change is coming, I'd say the length of the closure probably verifies it.
As a kid, I loved the Disney Tom Sawyer movie. I found the island to be enjoyable as a kid, but haven't been back over there in years. So a rehash is probably needed, but I'm with Dave. Is anyone going to get excited about a POTC island five years from now?