This is the official message on the site:
"Gardenia Park is closing down soon, at the end of October.
We have prepared Winx Adventure, a new online game, which aims to give all of you a much better experience and fun factor. In Winx Adventure you can decorate your personal room, teleport to everywhere on the map, and at the same time, make many friends and chat with them."
Spend all the time you can in it while it's still there!