They may, yes. But the ultimate outcome is in no doubt now for any reasonably well-heeled defendant, or even for GOAL: if I understand due process, this is the kind of arrest that leads straight to a federal civil rights injunction preventing the restriction, with a habeas corpus motion to void the arrest and, later, a wrongful arrest lawsuit. One or two rabidly moonbat chiefs might want to go through that nonsense, but most won't want the paperwork.
My feeling now is that SCOTUS won't need to rule on a lot of these AWB/mag cases any longer. The new scrutiny rule is clear, and so is the outcome of these cases. I think all SCOTUS has to do now is grant cert, at which point most states will largely fold their tents to avoid a direct smackdown with precedent. They'll change their own laws rather than that.
Some states may go full moonbat and pursue this all the way up, but SCOTUS already has an answer for them. The reasoning in this ruling makes that clear. It would just be a waste of time and money for those states, especially if there are no significant personnel changes on the Court in the near future.