If he loses the match, it's the end for him. He has worked so hard for the last 10 years and if he loses this single match then I don't think a re-push would be so good on him. He has the momentum coming in the match, just had a great match with TripleH and beat him, so what does he get?
I don't think the WWE will let anyone beat one of the top stars just for nothing, if Jeff Hardy beats HHH it means that they are going to give him a major push or atleast they are going to do something with him, something big. But let's just wait and watch what happens at the Royal Rumble.
I just hope they don't drop the guy after such a big Match, and if they do then they should be able to pick up the guy from the place they left him in, maybe have Jeff Hardy involved in the Money in the Bank Ladder Match, and have him win that match!