Empire Online reports that the forces of Skynet will be back for a fourth attempt to squash humanity, with shooting on "Terminator 4" scheduled to begin in 2005.

Discussions are apparently ongoing with Governor Arnold Schwarzenegger - and we may yet see him return to cause more mechanical mayhem. But, if he signs on at all, Arnold's role will likely be a small one, leaving the fourth instalment to break in an entirely new model of Terminator.

The script for T4 is essentially complete thanks to the screenwriters behind T3, and director Jonathan Mostow has cleared a space in his calendar to direct the film after completing work on his next project. Claire Danes and Nick Stahl are a little less certain though, as neither of them have signed on for another film.

Thanks to 'Jeff'.