Alright, call me crazy, but I think it's about time we got a fighting style for Zelda and Sheik that would truly make them "Zelda/Sheik", while still being effective as individual characters.
The key to this is to make the transformation a lot faster, I mean faster than Melee, and make it able to do a small amount of damage to whoever is around. That way, one using this fighting style could learn to utilize combos from from both characters, and do such things as starting a combo as Zelda and finishing that combo as Sheik or vice versa. Or if Zelda has a better recovery move, you could quickly switch to Zelda and use it.
Of course we'd then have to think, would transform still be a down special? Or could we move it to a different button, such as a taunt button? Moving it to a different button would certainly make it easier for people playing as each character individually by not accidentally hitting the transform combination.
You could add another special to Zelda, such as changing her side special to Light Arrows while her down special becomes a Din's Fire that's more like Ho-Oh's Sacred Fire Pokeball move, but not as big.
Now these are all just suggestions, open to comments and criticism or other ideas. I just want to make it so my main (Sheik) can have an even more unique fighting style that utilizes her transformation to Zelda.