for the sake of conflict of interest I've been shitting on this case since before I moved, if I remember correctly.
SCOTUS doesnt want to give out solid 2A rulings. Just look at Heller. The states said f*** you straight to SCOTUS. So then we had to have McDonald so the states had to use it at their level. And then they continued to ignore it.
@Rob Boudrie mentioned that he doesnt think an AWB case has as good of chance. I'll take his word for it. that said, Heller clear as day says you can't ban common use firearms. AR-15's are the de facto American rifle. They arent common use. They are ubiquitous. Hell, even in ban states they are. Yet here they are still in some weird limbo gray areas. SCOTUS doesnt care which is why they wont take it. They don't want the heat from that one.