@Thomas,
Those have been the minuses but if they remain sporadic, I could follow it out to the end. The problem with a 4th movie, the third "Terminator" film is the weakest with one of Ahnold's worst performances and this series is eating up all the material. With the spin-off looming, I can't see any producer getting the money together and enlisting Ahnold to reappear as, what? The baker Terminator turning out cinnamon rolls? But, they have with James Cameron as a writer:
Terminator Salvation (2009)
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. Christian Bale plays John Conner.
Have to wait to see how the ratings hold up until the end of this season, but I'm afraid they are still hell-bent to survive in a ratings war by appealing to a larger audience.