Some stages should be remade and just considered "new" stages, since they'd be revised versions of older ones. Other stages should be updated graphically, like some of the N64 ones. If the Melee ones weren't, I wouldn't be upset. But, I think that N64 stages could be upgraded, if not just a bit. I know they might lose some of their charm, but it'd still be nice. Although, leaving them as is would still be nice; as long as, they're there. But, that's just my opinion.