SmashGAF is embarrassing.
I don't even know why I even bother reading that thread. All people seem to be doing at the moment is hoping for characters to get dis-confirmed. What kind of horrible person wants a character dis-confirmed and have its fan base to suffer... it's just immature and ridiculous behaviour. I dislike Waluigi, but I wouldn't laugh at the Waluigi fanbase because he was dis-confirmed, because it's uncalled for and wrong. On SmashGAF, it seems like there is only a small number that want Ridley, some don't mind (and perhaps are interested a little bit in what he'd play like) / don't care, but the rest are the usual ignorant type who bash those on other boards (including Miiverse and Smashboards) for no reason and want characters dis-confirmed, because it's "oh so hilarious" attitude ._.
Oh, and the fact that people in the thread said Ridley "isn't on the same level as Ganon or Bowser" is silly. I mean, Ridley has been featured in that eshop Villains takeover with those two, and he's often used to represent the Metroid series, both in Metroid games and in non-Metroid games (NES Remix 2, Nintendo Land, etc). He may not be the final boss in games, but he's still alot more iconic than those that are.
Well, consider THIS logic.
It's been theorized that the song "Ballad of the Goddess" is somehow related to Zelda's Lullaby. The two songs sound very similar, right? It's possible they're even the same song, modified after thousands of generations. One of the few everlasting pieces of music, especially in the Zelda series.'
Guess who was the person to first teach you Zelda's Lullaby?
Impa.
Impa would confirm Ridley about as much as Ghirahim, and she seems like a better option to me.
Both are in Hyrule Warriors and both are equally popular, so it's possible. If she is chosen as a playable character over Ghirahim, I hope that she isn't a Sheik clone.
I like both Ghirahim and Impa, so I wouldn't mind who got in.