I would think so. Here are what I think are some possibilities:
1) The SCOTUS could agree with the 11th Circuit, provided that an en banc ruling echos the three judge ruling that the Individual Mandate is unconstitutional.
2) A newly-minted 65-seat Republican Senate can join a 300+-seat Republican House in passing a repeal of O'Care to be signed by a President Palin/Perry.
3) A Congress configured as above can pass an amendment to the Constitution out to be approved by 38 or more State legislatures which removes the Federal Government from contact with the medical profession except for an oversight capacity only.
Thank you, Tonytitan. The bottom line, then, is that a SCOTUS ruling upholding the constitutionality of Obamacare (shudder) does not make that law irrevocable. We trudge on.