I don't know, but I'll bet an odd new class of collectible weapons may result: the "inter-ban" rifle strangely lacking a normal bayonet lug and flash hider, sporting something called a "thumbhole" stock, and marked with sinister names like "HBAR", "Sporter" or "SAR". These will go for premium prices when our grandchildren collect at future gun shows ;)
sure, it the ban expires we'll have all the goodies back...well except in those states that have similar, or more restrictive laws on the books. If you live in CA or MA you'll still be SOL. Unless the Supreme Court saves your a$$.