In Reply To #17
Yes, you're right in that meaning, and yet, if Terminator 4 won't include an invincible Terminator trying to destroy John Connor... It would be a whole new movie, as similar to the first movies like Matrix: Revolutions was related to the first 2 Matrix movies. Revolutions was hated by many matrix fans as it concentrated on Zion and the battle to protect it, while the first movies were totally different, concentrating on the virtual world, the Matrix itself.
So you see, Terminator is an action movie. It's an action sci-fi movie, but on it's main focus, it's an action movie.
If 4 is going to concentrate on the science fiction more than on the action, it's not gonna be Terminator, you see?