So, I guess we'll get another character this month?
At this point we're getting two every month, so this is what I predict (and I'm 100% sure it's all wrong).
February: Diddy later this month.
March: Yoshi when New Island release, Snake when Ground Zeroes releases (because who ****ing cares, right Sakurai? Smash Bros. could get attention out of this ironically)
April: newcomer for Nintendo Direct, Ice Climbers when NES Remix 2 releases
May: Wario for Mario Kart 8, and maybe Meta Knight for Triple Deluxe US release?
June: E3 newcomers blowout (AT LEAST three) and a bunch of new information about game modes, release window, and all that.
The funny thing is that I'm most certain about E3, which is in 4 months (WAIT, FOUR MONTHS?).