STORYLINE FOR TERMINATOR 4?
Moviehole has received a possible (and we emphasize POSSIBLE) storyline for Terminator 4 involving Dwayne Johnson aka 'The Rock':
Plot rumors have surfaced again for Terminator 4 and loosely involved the same outline as previous years have stated, especially with Dwayne 'The Rock' Johnson's possible involvement with Arnold's Terminator.
As like another Cameron related series, Alien, where we'll see Lance Henriksen's robot character from the original Alien series, in human form, word that The Rock could take on a Rebel character that Arnold's Terminator robot was based on.
It's no secret that Arnold praises and is championing The Rock as the new action star of the 21st century and that Arnold is contracted for T4 - however it's believed he won't be in the movie for very long, paving the way for The Rock. Effectively, they would be playing the same character. Dwayne in human form as the Rebel hero and Arnold as the Terminator.
Courtesy of MovieHole