All features are now in place and the game is finally running on my Xbox. I was pleased with how it looked on a 1080p TV - more detailed and with less jaggy edges than the first game, which I played directly afterwards for comparison. The framerate seems rock solid 60fps too.
Now It's just a case of removing a load of bugs and finishing off any little details. I'll probably play through it a couple of times with a notebook, jotting down any issues or crashes, and them ticking them off.
I'll have to get a trailer ready before long, too.