Arnold is supposed to be onboard -- rumor is part of this next film is a period 1940s/50s set piece. Other hot rumor is Dwayne Johnson, savior of all "franchises in need of rehab", is potentially going to be involved as well.
Paramount has confirmed the long in the works deal to cofinance and distribute the reboot of James Cameron’s Terminator franchise creation. Highbrow picture maker Megan Ellison spent over $20 million for the rights in 2011, and the project didn’t go very far. Things finally started percolating when Megan Ellison and her Annapurna Pictures joined forces with brother David Ellison, whose Skydance Productions has a deal with Paramount and makes popcorn movies. Avatar’s Laeta Kalogridis and Patrick Lussier have been working on the script for months. Arnold Schwarzenegger returns as the title character and the hope is to get at least two movies done before North American copyright reverts back to Cameron, who might want a fortune or might want to retire the franchise. Here’s the announcement:
http://www.deadline.com/2013/06/paramou ... e-26-2015/Skydance Productions, Annapurna Pictures and Paramount Pictures have jointly announced they will partner on a rebooted “TERMINATOR” movie, to be released by Paramount Pictures on June 26, 2015.
The first in a stand-alone trilogy, “TERMINATOR” will be produced by Megan Ellison of Annapurna and David Ellison of Skydance. Dana Goldberg and Paul Schwake of Skydance will serve as executive producers. Laeta Kalorgridis (“Avatar,” “Shutter Island”) and Patrick Lussier (“Drive Angry”) are attached to write the screenplay.
Launched in 1984 with star Arnold Schwarzenegger as the title character, “TERMINATOR” spanned 3 subsequent films, which have earned over $1 billion at the worldwide box office.
David Ellison most recently executive produced, along with his partners at Paramount, “World War Z,” “Star Trek Into Darkness,” “G.I. Joe: Retaliation” and “Mission: Impossible – Ghost Protocol”. A 5th installment of in the “Mission: Impossible” franchise is in active development, along with a 3rd film in the “G.I. Joe” franchise, among other films.
Megan Ellison most recently produced the Academy Award®-nominated “Zero Dark Thirty,” “The Master” and executive produced “Spring Breakers” via her Annapurna Pictures banner and has David O. Russell’s “American Hustle,” Spike Jonze’s “Her,” and Bennett Miller’s “Foxcatcher” set for release later this year.
It's also the first of Cameron's "lecture" movies, where his message about nuclear holocaust becomes incredibly heavy-handed (although at least he was wise enough to jettison the HORRIBLE alternate ending, with Linda Hamilton sporting old-age makeup about as convincing as Billy Crystal in The Princess Bride 
). T3 is certainly not perfect, but there's not an ounce of fat on it, the action sequences are expertly-mounted, and the ending is bleakly daring. Salvation has an overly-histrionic performance by Christian Bale ("We are DEAD, we are DEAD, we are ALL! DEAD!!!"), but it also has top-notch action sequences and excellent special effects (the nifty Schwarzenegger "cameo" was a definite highlight). Both continue the story in clever ways, and are worthy additions to the "lore" of the series.