I watched. I was actually surprised about the ending, the chick that Shirley manson played, being a terminator. The thing though is, she is a completely different terminator than Cameron or Cromartie. She's like the terminator from T2 or T3, super advanced. My only guess is that she too was sent from the future to ensure that skynet was built. Cromartie was sent to ensure that John was killed and Cameron was obviously sent to ensure that John stayed alove. Way too many terminators!
My guess is that the FBI agent (whatever his name is), while he said he wouldn't lead Cromartie to John and Sarah, I think he will do it inadvertantly.
As for T4, courtesy of imdb.com,
Christian Bale- John Connor
Anton Yelchin- Kyle Reece
Bryce Dallas Howard- Kate Connor
Helena Bonham Carter- Serena (just thought it was cool she's in it)
Roland Kickinger- T800 (there's our terminator)
according to the site, Claire Danes was reportedly offered the role but declined to reprise.
Here's what imdb.com has as the synapsis of the movie:
Set in post-apocalyptic 2018, John Connor is the man fated to lead the human resistance against Skynet and its army of Terminators. But the future Connor was raised to believe in is altered in part by the appearance of Marcus Wright, a stranger whose last memory is of being on death row. Connor must decide whether Marcus has been sent from the future, or rescued from the past. As Skynet prepares its final onslaught, Connor and Marcus both embark on an odyssey that takes them into the heart of Skynet’s operations, where they uncover the terrible secret behind the possible annihilation of mankind.
As for Arnold:
Even though he’s still wrapped up in politics, it looks like Arnold Schwarzenegger will be back as the Terminator in Terminator 4. Just don’t expect to see him for very long.
The Boston Herald spoke to MGM CEO Harry Sloan who says that he’s already contracted to show up, but it’ll probably only be for a cameo. Maybe he’ll do a symbolic passing of the torch to whoever they come up with to be the new Terminator.
http://www.cinemablend.com/new.php?id=4592
I'm so excited for this movie! Next year is gonna rock with movies, HP 6, Transformers 2 & T4 (opens 5/22/09).