New Character to be Revealed for Super Smash Bros. This Monday

Nintendo announced today that on Monday, a new addition to the Super Smash Bros. lineup will be revealed at 11pm JST (10am EST):

Nintendo Japan’s Twitter account also made the same announcement:

And on the Youtube front, a video on Nintendo Japan’s account is counting down to the announcement time (hit play to see the timer):

I wonder which character will be announced. So far candidates include veterans such as Caption Falcon, Ice Climbers, Jigglypuff, Ganondorf, Mr. Game & Watch, Ness, Meta Knight, R.O.B., Falco, Wolf and Wario, among others. We could also be looking at some fresh faces, such as a character or two from Fire Emblem: Awakening or maybe even Bayonetta. (Thanks to L~A for the info!)