Smash Bros. Leak

A Leak has surfaced on Youtube and other sites showing video gameplay footage and a character select screen with some characters yet to be unlocked.  This appears to be legitament as Nintendo is rushing to have these videos removed from Youtube and other sites.  If it is the following are new/returning characters that were not previously announced:

• Bowser Jr.
• Wario
• Game and Watch
• Ganondorf
• Falco
• Jiggly Puff
• Duck Hunt Dog
• R.O.B.
• Ness
• Dr. Mario
• Dark Pit
• Shulk

If this is real it shows 48 characters off.  Several which are new.  The Bowser Jr. Gameplay on Youtube looks really good and shows his clown car as his way of moving and some of his attacks.  If you can you should look it up on Youtube.  Hopefully you can find one before Nintendo has it removed.