Burton has done alright. Dark Shadows was actually a decent movie, but they released it at the same time as Avengers which was a death sentence to any movie that summer. I can honestly say that nothing I have seen by him recently has been unwatchable. Its actually Depp that's in the slump right now, and one of epic proportions.
After seeing Birdman, I actually think there is a chance this could be awesome, as long as they let Keaton be himself and stick with mostly stop motion and practical effects.