Only if Miller can get past Shields! The first fight was close but Jake didn't really "FIGHT". Nick.....I really don't think he has a chance to beat Nick Diaz. Nick is one of the best in MMA right now.
Diaz vs Miller would be a good fight. Miller aint no punk which is obvious by him coming to the cage where Cesar Gracies team was celebrating the win to confront Shields. It should be a good fight on the feet or on the ground, but I think that Nick would either stop him late or win a close decision.
Miller is almost impossible to submit. So Nick can forget that. On the feet it'll come down to Miller's knees in a muay thai clintch which he loves to utilize or Nick's pawing jab / right combo which is surprisingly effective.