5-4 Ruling that ALL gun restrictions violate the second amendment, if Roberts wants to rewrite precedent.
Otherwise, a 5-4 ruling striking down the large capacity magazine restrictions only.
I can't see a right-wing Supreme Court not taking this up.
I mean, given that all 12(!) 2A cases up for consideration this past term were denied cert, neither the conservative nor liberal wings are confident in Roberts siding with either of them on this issue, so it's honestly a complete wash as to what might happen if/when this were to hypothetically wind up before the Roberts Court.