I'd think Gorsuch and Roberts would be on board for striking down AWB at the least because states can almost literally decide anything is an "assault weapon." For now it's semi autos with features, next it will be lever actions and we need not question that because Australia had a fit over some lever action shotguns 10 years ago and banned those too. After that it'll be pump actions with features until finally they just decide to do away with anything that shoots more than 3 rounds a minute as that was the standard rate of fire in the 18th Century.
I thought the whole deal with Bruen was to set the standard of "text, history, and tradition" for 2A cases? Is SCOTUS trying to tell us that Ben Franklin, Washington, Jefferson, and Adams would all have been for banning muskets with a pistol grip or a folding stock? Of course they wouldn't and if AR's existed they wouldn't have supported any restrictions on features for those.
The whole semi auto language is a completely different animal.