I think Link's Awakening would really lend itself well to
SS's engine. Adding more sidequests, chararacters, areas, and revamping the dungeons for 3D would be really cool to see. By the look of it,
SS's overworld is handled in a very similar way as
LA where the overworld itself is pretty much a multi-layered dungeon. But that dream-like and innocent feeling that makes the original so charming (to me at least) needs to stay intact.
LA really had some oddball characters, even the bosses were silly and talkative.
And, man, waking the Wind Fish with a fully orchestrated Ballad of the Wind Fish would be jaw dropping! Just thinking of it puts sparkles in my eyes.
By the way, how is the surface overworld in
SS? Is there a lot to explore? And do the dungeons really feel like part of the overworld? That's a page from Metroid that I really want Zelda to take from.
Speaking of Metroid... I wonder what's going to happen to that series. I honestly don't trust anyone but Retro Studios with Metroid now, but I really would like to see Retro take on a 2D Zelda or a brand new IP where they can have at much fun with level design as they did with DKCR but have the open world of Metroid Prime.