There is likely to be a mass of further challenges as additional provisions of ObamaCare are implemented in the future. These challenges can't be brought today because nobody has the legal standing to challenge them until they are implemented.
My prediction is that the Federal government is going to spend billions of health care dollars fighting legal battles with each and every ObamaCare measure that is implemented over time. And the constitutionality of ObamaCare will be fought on all of those additional grounds, too.
This morning there was a chance it would be. But tonight you can turn out the lights.
Maybe if elected Romney will strike it down, but he'll certainly replace it. With what we don't know. And thats now the best case.