To the original post, Mario and Sonic Olympics is currently tentatively set for November 2013 from Nintendo's own investor meeting graphs during E3. Anyway, here are my predictions:
February-Bayonetta 2
March-Mario Kart 8
May-Yarn Yoshi
July-Wii Play U or Wii Sports Resort U?
August-3rd Sonic Game?
September-Shin Megami Tensei X Fire Emblem
October-X
November-Super Smash Bros.
It's so difficult to say, because obviously they have projects that are fairly far along that we know nothing about yet. I wouldn't be at all surprised to see announcements for Kirby, Star Fox, and Metroid at some point next year, whether on Wii U, 3DS or both. I would think 2014 would also see at least one "Wii" series game whether that's Wii Play or more likely Wii Sports of some sort.
Zelda is tough to predict...historically it's a franchise notorious for delays because they polish it to death. On the one hand, they said they almost showed it at E3 this year, implying that it may be farther along than we think. So it's possible Zelda could be the headline release for November 2014 (3 years since Skyward Sword), in which case, Smash Bros. would probably come out sooner like August or September. On the other hand, Zelda often gets delayed and if they're truly trying to make it an open world game where you can freely explore and do things in ANY order (I picture the original Zelda mixed with Skyrim), that's obviously going to take some more time and I think it's far more likely that Zelda will be the marquee title for Holiday 2015. The good news is that if they were close to showing it, that means they must've already decided on an art-style, AND whether they choose motion controls or traditional controls or a mix of both, at least they don't have to waste a year or two in development trying to work out a completely new control scheme. Skyward Sword was delayed by more than a year because they couldn't get the motion controls they wanted until AFTER they'd seen MotionPlus and how it worked in Wii Sports Resort. The thing we CAN count on though, is that we'll see the new Wii U Zelda by E3 next year, if not even sooner in a Nintendo Direct!
Upcoming Games To Get
Definite: Kirby Star Allies (Switch), Mario Tennis Aces (Switch), Fire Emblem (Switch), Yoshi (Switch), Pokemon (Switch), Kingdom Hearts 3 (PS4), Monster Hunter World (PS4)
Considering: Fe (Switch), Donkey Kong Country Tropical Freeze (Switch), The World Ends With You (Switch), Ys VIII (Switch), Street Fighter V: Arcade Edition (PS4), Kingdom Hearts 2.8 Remix (PS4), The Last Guardian (PS4), Shadow of the Colossus HD (PS4), Anthem (PS4), Shenmue 3 (PS4), WiLD (PS4)