Cohn does some crystal ball reading:
While the judge has decided that DADT is unconstitutional, she hasn’t said what, exactly, the government has to do in response. If she says the government has to stop enforcing DADT, then Justice has to appeal, for the reason I said. But, based on what I've seen, it sounds like it’s possible that she would just order the reinstatement of the plaintiffs in this case. If so, then it is barely possible--unlikely, but imaginable--that the government would just drop the case. That is because a decision by a district court does not establish a precedent binding on anyone. I could imagine the government saying that it’s not worth spending the time and money on an appeal when the case establishes no precedent and just requires the reinstatement of a couple of service-members.