Because it is pretty much guaranteed that TERMINATOR: SALVATION will be a massive sequel-spawning hit, McG has already started talking about what he is planning to do next. I suppose that you could consider there MILD SPOILERS here, so read at your own discretion:
“I strongly suspect the next movie is going to take place in a [pre-Judgment Day] 2011,” McG reveals. “John Connor is going to travel back in time and he’s going to have to galvanize the militaries of the world for an impending SkyNet invasion.”
“They’ve figured out time travel to the degree where they can send more than one naked entity. So you’re going to have hunter killers and transports and harvesters and everything arriving in our time and Connor fighting back with conventional military warfare, which I think is going to be fucking awesome. I also think he’s going to meet a scientist that’s going to look a lot like present-day Robert Patrick [who famously played the T-1000 in Terminator 2], talking about stem-cell research and how we can all live as idealized, younger versions of ourselves.”
I have no idea what it is over there on your side of the world but for us in the UK today is a bank holiday. And I’m lazy at the best of times. So here is a picture of Moon Bloodgood, from TERMINATOR SALVATION, and thus, relevant.