I was given a private tour of the game's new archipelago, and I was quite impressed. The islands have a very swampy jungle feel to them. It's a logical progression, climate-wise, from the tropical south of Dereth. Moarsmen are lizard-like dudes that apparently give off a horrible stench. A Slithis is a multitentacled beast whose arms regenerate unless you destroy its head.
Idols are giant statues found in mosswart temples.
They look like cutesy Sanrio characters gone bad. In addition, look for new varieties of mosswart, sclavus, wasp, wisp, zefir, and more. Turbine has thrown some nifty new touches in graphically. The dungeons on the islands sport nicer textures than previous dungeons. There are also some interesting lighting effects.