The developers have finally issued an update on Terraria: Otherworld. Basically they felt the game needed a rework as it wasn't up to their standards, hence the delay. They can't give a current date for when the game will be finished as there is a lot of work to do still, the post very much sounds like they took a lot of it back to the drawing board.
Anyway here are some new screens, I think aesthetic wise it looks really good. I didn't realise they were putting tower defence stuff into the game though, not sure how I feel about that as I really dislike that gameplay mechanic.

http://forums.terraria.org/index.php?th ... eed.47302/