I'm sure this has probably been brought up a million times already. But, I've been away for a while. I strongly believe that he shouldn't. He was cool in the '80s movie and I appreciated his inclusion in Armada. But, for some reason, putting him in the movie-verse seems like the "lazy way out". I think that the creative team can easily concoct a more interesting and original conclusion to the movies, rather than just saying "Well, let's finish it all up with Unicron since we've reached the end..."