SCOTUS will hear if 2A applies to the states. Lots of stories online about it like here, and then background reading here.

Don’t see why it wouldn’t apply, given how just about everything else has been incorporated. It’s difficult to see how it couldn’t, but it will all come down to the details of the cases and how they are presented to the court.

But I don’t want to speculate on the outcome nor put the cart before the horse and figure what the outcome will mean. The devil will be in the details and we just have to wait.