Piranha Bytes - Gothic 4
Quantic Dream - Omikron 2, or Omikron-alike Kara
Obsidian - Star Wars RPG or Pathfinder licensed RPG
Ubisoft - Beyond Good & Evil 2
Amanita Design - Machinarium 2

Naughty Dog - Crash Bandicoot 4
Naughty Dog - Crash Team Racing 2
Insomniac Games - Spyro the Dragon 4
Sony Bend - Uncharted Golden Abyss 2
Bandai Namco - Tekken Vita
Capcom - Monster Hunter Vita

Ubisoft - AAA-class Might & Magic CRPG (It's fantastic, I know)
Bethesda Softworks - I believe they work hard on Fallout 4 and I hope next will be TES6
Valve - Portal 3
Nintendo - next Donkey Kong Country
Rockstar San Diego - Red Dead third game
id Software - Quake V
Firaxis - new XCOM

I wanted to post this as well, M&M is my favourite RPG franchise, but I'm pretty sure Ubi would ruin it trying to make Skyrim killer - while Legacy was not a stellar game, I'd be much more happier to see them go in AA direction while honoring M&M gameplay traditions and eventually make it as good as it was around VI/VII

mostly hoping for the next red dead game.

Activision: Tony Hawk Underground 3
Square Enix: New Chrono or new Vagrant Story
Bethesda: Doom 4
Rockstar: New Bully or Red Dead
Team Ico: The Last Guardian
Platinum: Metal Gear Rising 2
Rare: Conker's Bad Fur Day 2

That is indeed what I want from Ubisoft more than anything. An eastern-Asia set Assassin's Creed and more UbiArt titles would be awesome too.

Also,

Nintendo: HD rerelease of Paper Mario 2 + new sequel

Rockstar: Red Dead Collection for PS4/XB1/PC + new sequel

Naughty Dog: What everyone said

Platonic not to mess up with the new Banjo-like game, and anything with a '3' from Valve as long as it isn't Team Fortress. Another hat simulator shouldn't be the priority right now.

A new Paper Mario game for WiiU.

I just want Ninten to finish Shin Megami X Fire Emblem already... >: /

I would say Capcom should make a home console Okami sequel, but they'd probably mess it up now.
Also, I would love to see another game in the vein of L.A. Noire from Rockstar...