1. Persona 4 Arena 2 - Arena left off on a few big cliffhangers that I'm eager to see resolved, and the new gameplay changes, characters, stages, and especially the music have me extremely excited.
2. Bayonetta 2 - It's the sequel to my favorite game, and would easily be #1 if I wasn't so eager to see how Persona 4 Arena 2 resolves Arena's cliffhangers.
3. Dark Souls II - Dark Souls was one of the most finely crafted games of last gen, and I'm excited to see how From can up the ante.
4. Donkey Kong Country: Tropical Freeze - DKCR is my favorite platformer from last gen, and the sequel looks fantastic.
4. X - I haven't gotten very far into Xenoblade yet (only 18ish hours in), but X's setting and mechs look really interesting to me, and I like how X seems to be pushing the Wii U's hardware more than most (all?) other games at the moment. The possibility of online coop doesn't hurt, either.
5. Smash Bros 4 - Some small part of me still has high hopes despite how Brawl turned out. At the very least I expect it to fill my desire for a 2v2 fighter to play with friends, but I'd love for it to be a fighter that I feel is worth taking the time to really learn like Melee was.
6. Gravity Rush 2 - Just flying around and messing with the gravity mechanics was way more entertaining than it should have been. In some way, the first game really clicked with my desire to go skydiving someday, and I'm excited for more of that plus seeing the new stuff they add to the sequel.
7. Theatrhythm: Curtain Call - I've never played Final Fantasy for more than a couple hours throughout the entire series, but Theatrhythm is just such an enjoyable game with great music even for those that aren't fans of the series. I don't know how much they plan on changing, but even just more of the same would be fine with me (just preferably less grindy).
8. DanganRonpa - I don't know much about this game, and intend to keep it that way, but what I do know sounds right up my alley.
9. inFamous: Second Son - The first two games were highly enjoyable super hero games. I'm looking forward to seeing the series with a new protagonist and on new hardware.
10. Hotline Miami 2 - The first game was quite addicting, and I really appreciated how brutal the difficulty was. It really forced you to perfect your strategy based on how you were approaching the level (IE: melee weapons or guns).
No Persona 5 on my list because I highly doubt we'll see it in the US until next year, and I don't know Japanese. No Blazblue: Chronophantasma either because I already have the JP version on my PS3, though I am looking forward to playing the story mode. Bravely Default just missed the cut because I don't know much about it, and plan on keeping it that way to keep the game fresh for me.