Well, Peter Jackson had a pretty short one too before he made LotR, and most of the movies he had made were pretty bad to boot

@Riley: Um, what? With the exception of Meet the Feebles and Bad Taste, all of his movies had been critically well received but generally overlooked due to their low budgets and limited releases. All of his movies showed his chops as a director, ability to work within a budget, and storytelling abilities on screen. Hell, he shot the entire Lord of the Rings trilogy for just a bit more than most Hollywood Blockbusters are made for these days.

No other director could have possibly made Lord of the Rings successful.

Peter Jackson's movies poor? Maybe 'Bad Taste' etc just weren't suited for your tastes, they were far from poor.

Jackson also has Weta Studios (backbone of Avatar CG) and a close relationship with Richard Taylor who is a genius (worked on LOTR trilogy and Avatar)
If Raimi bailed, I would offer the job to Jackson if he was at all interested, though at the moment he has his handsful with getting The Hobbit movies off the ground, so would be a few years down the track at least.

Seriously. I don't know if he'd work as well with the sort of incredibly packed, detailed warcraft setting as the simplicity and bare-bones of what he constructed for Moon, but I would love to see what he'd do with it.

Also, on an unrelated note, I got to interview him at a film festival where Moon was showing, and he was totally incredible to talk to. I was nervous (because, um, he's gorgeous and of course he is, he's Bowie's kid, and also a totally amazing director, and it was my first interview with that particular gig) and he did a lot to put me at ease, and then I was really comfortable talking to him. The video seems to be down, now, but he was so eloquent about his own work and passion for science fiction and gaming. It certainly secured my attention on his work for life.