I don't think they are going to address the "constitutional" issues. Instead they are going to rule on whether the bankruptcy of Chrysler and the sale to Fiat is legal under the bankruptcy laws of the United States.
If it were a "constitutional" issue, I don't think Ginsberg would have issued a stay, as I'm not really sure she's ever read the thing. But there are a lot of non-constitutional issues that the Supreme Court hears every year and as a general rule nearly all the justices are pretty strict in their interpretation of statutory rules.
On constitutional issues, the Justices tend to be esoteric and often ignore the meanings of the words, but on statutory interpretation, they are all pretty hard lined.
I think this turkey is dead.
That sounds reasonable, I hope you are right.