Never played ALttP (I really should) but I don't really think LA needs one. That being said I'm an extreme fan of the GB/C Zelda games so that's just my opinion.
Although, if it were just an aesthetic update that would be quite cool. A few extras could be added, but they'd have to be optional (like how DX added the Colour Dungeon, as opposed to changing an entire dungeon).
Although, if it were just an aesthetic update that would be quite cool. A few extras could be added, but they'd have to be optional (like how DX added the Colour Dungeon, as opposed to changing an entire dungeon).