Welp, here's another roster for you folks to turn your scrutiny upon. One of the DK reps can be replaced with a Rhythm Heaven character if you must cling to Gematsu, or Shulk can be replaced with a retro/Snake if you are dead-set against the "outdated/inaccurate/extraordinarily lucky" leak. Don't touch Isaac, though; he's the only thing on the unconfirmed roster that I am really invested in.
As for Dark Pit, I sincerely hope this won't instigate a discussion of him... but I really do think he's in. I re-watched all the trailers back to back this morning, and Dark Pit's teaser really screamed "playable" to me. It's my prediction that we're gonna find out that he got the "Lucina" treatment and was altered from an alt of Pit into a full character.
And Ridley... I honestly have no clue. I put him in because it's entirely possible, but I can so see him turning out to be a "hype" (by Sakurai's standards) stage boss. I'll be happy either way, but for now, let's say playable.