I don't think I understand this sentence - that doesn't sound like a good thing - the President could abolish Congress's power?
If the bill WERE to require a signature, then it would not be an exclusive power of Congress. Therefore, it does NOT go to Obama. The Congress can act alone on this and change the lower courts.
Since we will now control both the House and the Senate, the question then becomes cloture. The only roadblock will be getting to the 60 vote limit to cut off debate in the Senate.
If they can get 60 votes, then it could be a done deal if the Republicans had the nerve to do it.
-PJ