Not sure if this belongs here, but here's what Zipzo mentioned about Zelda from the new Japanese Smash 4 demo.
Side B (Din's Fire)
Q. "What is the time between releasing the special attack button for Din's Fire and it creating a hitbox?"
A. "The explosion seems to happen more instantaneously from the point in which you "release" it."
Down B (Phantom)
"It doesn't hit a character right up in her grill. The phantom spawns maybe a character away, so if your opponent is right up on you, the phantom will just spawn in front of them and whiff."
Fair & Bair / Up B (Farore's Wind)
Q. "Is Lightning Heel closer to Melee or Brawl (or, god forbid, Project M)?"
A. "Thunder heel feels a little nerfed but her recovery has some ridiculous kill power on it for some reason."
Overall
Q. "Overall, how does Zelda feel to you, does she feel stronger in this than she did in Brawl?"
A. "Her phantom attack is actually pretty cool but something to note is that it will not hit a character standing directly in front of you. It will start a model away from zelda and rush forward, completely ignoring the character standing in your grill. I haven't played Zelda all too often in previous iterations but she felt like a glass cannon, if you will. Each of her abilities seemed to really freaking hurt when connected, but she's pretty light."