Isn't Serkis the narrator for the first teaser? I had figured he was playing a villain, but would be some sort of alien that wouldn't work as a puppet.
But there's no reason to have a CG Vader, it's cheaper to hire a tall guy and stick him in a suit. Plus if Vader comes back, why would he even be in a suit? It would make more sense to have a healthy Anakin. Anakin seemed to be more powerful before he got burned, Vader seemed to be limited by his suit and prosthetic limbs. What are they going to do? Pop him out of the clone pod and toss him in a fire for the sake of the coolness and intimidation factor?
But there's no reason to have a CG Vader, it's cheaper to hire a tall guy and stick him in a suit. Plus if Vader comes back, why would he even be in a suit? It would make more sense to have a healthy Anakin. Anakin seemed to be more powerful before he got burned, Vader seemed to be limited by his suit and prosthetic limbs. What are they going to do? Pop him out of the clone pod and toss him in a fire for the sake of the coolness and intimidation factor?