The Chronicles of Narnia: Voyage of the Dawn Treader will be released this December in both 2D and 3D. I think that this looks better than the second film.
Here is a brief synopsis of the film:
Lucy and Edmund Pevensie return to Narnia with their cousin Eustace where they meet up with Prince Caspian for a trip across the sea aboard the royal ship The Dawn Treader. Along the way they encounter dragons, dwarves, merfolk, and a band of lost warriors before reaching the edge of the world.
Check out the 15 New Stills from the film below: