I hopes it comes soon! Also confirmed is Beef, and it is likely that arrows will stick in the bodies of creatures shot. There will be new Biomes, not just bigger ones, and probably Melons which will grow on stems will be added- all these have been confirmed. Notch also stated in an interview that he liked the way you could summon bosses in Terrarria, which sounds like a hint to me. Furthermore, living Pigmen have been confirmed, which are the possible inhabitants of speculated NPC villages, a fancy way of saying mob houses. I'm pretty sure Fish as mobs have been confirmed, and one of the most interesting features, the Sky Dimension, which actually has glitchy coding in the game already. When you go to bed, there is a small chance that you go to the Sky Dimension, and from then on you can go on purpose.