found a leak on gamefaqs by cookiefonster
http://www.gamefaqs.com/boards/633202-super-smash-bros-for-wii-u/68577757
A few weeks ago a friend told me that from here on out a newcomer would be revealed at a Direct every month until release, and that all newcomers would be revealed prior to the game's release. I didn't believe him but he said that Little Mac would be in February and look what happened. According to him, this is their current schedule:
March - Palutena (will coincide with the two-year anniversary of Uprising)
April - Chrom (will coincide with the 24th anniversary of the original Fire Emblem and the second anniversary of Awakening)
May - Isaac
June (E3) - Pac-Man (Mewtwo will also be featured here, albeit without a full newcomer trailer)
July - Dixie Kong
August - Wonder Red (will coincide with the one-year anniversary of The Wonderful 101)
September - Takamaru
October - The Prince of Sable
The final newcomer will be Kamek, who will be announced during a special countdown presentation during the 24 hours prior to the game's launch, which is currently slated for November 2nd across the globe.
Snake is the only Brawl character not returning, bringing the final roster to 49 characters aside from transformations. Ridley is the much-hyped stage hazard on Pyrosphere, and Shulk, K. Rool, Lucina, King Hippo, Waluigi, and Dillon are all ATs. Miis are not playable but appear in one stage in each version (the already revealed Find Mii stage on the 3DS version, and a Mii Plaza stage on Wii U). Isaac will have a moveset that revolves around the Djini, and Prince of Sable's moveset will include the ability to transform into both a frog and a snake, neither of which can be used permanently for the entire battle, nor selected at the beginning of a battle, and thus are not considered to be full transformation characters a la Sheik or Zero Suit Samus. Pac-Man appears in his modern form, however for his dash animation his arms and legs disappear and he appears to move floating in the air in classic style.