MICROSOFT
Together with Nintendo they're the ones who have to prove the most. XB1 isn't doing badly by itself, but by june the ratio for PS4 might even be 2:1. They'll annunce a price cut but not a Kinect-less SKU because they're developing AR and games for it. Thank to Phil they'll go straight for the core audience, sadly i think they'll still use the 3rd party exclusive games/contents tactic more than their 1st party games. I'm no expert of their IP's so i'll stay pretty generic.
XBOX 360 ---> (price cut, more and better games with gold, some 3rd party games and 1st party casual titles)
XBOX ONE PRICE CUT ---> (most optimist is 399, otherwise 449, no Kinect-less SKU)
XBL ---> (putting Gold membership more on par with ps+, free games like Ryse, Forza 5 and DR3)
MORE MULTIMEDIA CONTENT ---> (you really thought TVTVTVTVTVSPORTS was over eh?)
KINECT-EXCLUSIVE GAMES ---> (something for the casual masses)
AR DEMONSTRATION ---> (works with kinect, ends up disappointing, just a response to Sony's VR)
HALO TV SERIES TRAILER
HALO 5 demo ---> (pushed to spring 2015 to get more polish, 1080p/60fps,)
GEARS OF WAR teaser ---> (seems to be still pretty early in developement, surely a 2015 release)
FABLE LEGENDS demo ---> (has to prove it's more than a casual game, late 2014)
SUNSET OVERDRIVE demo ---> (fall 2014)
QUANTUM BREAK demo---> (first real gameplay demo, early 2015, first TV adaptation trailer)
NEW LIONHEAD'S IP IP trailer---> (i don't know if they have a 2nd studio, but maybe a new Kinect-based IP)
RARE NEW IP trailer ---> (maybe something more than a casual game, maybe Banjo 3)
MS JAPAN 1ST PARTY GAME teaser ---> (a cinematic jrpg to appeal the western players, just a teaser, more at tgs)
FORZA HORIZON 2 demo ---> (i don't know car games so there it is)
KILLER INSINCT ---> (new characters and modes, maybe a complete retail edition)
D4 trailer ---> (don't really know much about it, japanese launch game)
METAL GEAR RISING 2 trailer ---> (developed by Platinum, kojipro giving them exclusivity in exchange of ps4-only MGO beta; 2015)
DRAGON AGE INQUISITION trailer ---> (exclusive content?)
MASS EFFECT demo ---> (exclusive content, no timed exclusive after Titanfall and loss of potential PS4 buyers, Spring 2015)
CALL OF DUTY ADVANCED WARFIGHT demo ---> (usual exclusive content)
THE WITCHER 3 demo ---> (first real gameplay footage, everyone cry from it's epicness, please please god no exclusive shit of any sort)
TOMB RAIDER 2 trailer ---> (next-gen only, exclusive content, first half of 2015)
JUST CAUSE 3 trailer---> (we know they've been working on it for quite a bit and there is the registered domain)
FALLOUT 4 demo ---> (live demo, developed with id tech, timed-exclusive dlc like Fallout 3, Spring 2015)
ULTRA STREET FIGHTER IV trailer ---> (also for PS4, KI crossover, Fall 2014)
DINO CRISIS REBOOT trailer ---> (next gen reboot, single/multy-player, Spring/Summer 2015, exclusive content or maybe even exclusive a-la DR3)
DEVIL'S THIRD demo ---> (MS publishing now, big XBO japanese launch game)
MAD MAX demo ---> (we still need a proper showing for the game)
LORDS OF THE FALLEN trailer ---> (showing off exploration and various builds, still targetting late 2014 but i can see it delayed to 2015)
DARK SOULS II trailer ---> (enhanced graphics on par with pc or better; full or timed XBO exclusive to counter Project Beast exclusivity, out in Late 2014/Early 2015)
EVOLVE demo ---> (maybe a new mode or new monster, release date announced)
-ONE LAST THING-
HALO 2 HD demo ---> (played segment of some famous H2 scene; one of this fall big releases as 5 gets pushed to 2015, 1080p/60fps)