The kitbot is gold. Let it be--well, unless you feel like dropping in some AM Shifters instead.
I wouldn't mind a couple more of the smaller motors, like the Keyang seat motor of 2004 vintage, to make things interesting, but we can do well either way. I'm neutral on pneumatics, as my team has yet to really use them. (Gripe #1: Limited firing ability. Perhaps some larger accumulators would help?)
I'll be very interested to see what happens in the sensor department. The CMUcam this year felt a bit like drinking from a fire hose, so I'm hoping either for something a little simpler to work with. (Of course, that can be accomplished with the game objectives as well.)
The one thing I'd flip over: Good pots.