Microsoft
This E3 is going to be big for Microsoft, they have the most to gain and also could have the most to lose. First of all I really think Alan Wake and Peter Jackson’s Halo game need to show in some form. If we do not see them at E3 I would be very worried if we will ever see them. Gears 2 is going to be a big title for them this year and I think we need a new trailer and Live on stage gameplay demo, same goes for Halo Wars.
I think the biggest title of all could be what Bungie show, its 99.9% sure they will show something at Microsoft’s press event. It’s going to be one of three things, a totally new IP, a new Halo game that does not involve Spartan 117 or Peter Jackson’s Halo project. I think its most likely going to be A new Halo game (possibly the rumored ODST game) or a new IP.
Finlay I think they have something big for the casual market to show. It could be a motion controller or something but I think they might have something and it could be BIG, lets not forget about the leaked avatars system. O the new Banjo, after seeing gameplay its in my top 5 games for this year looks so fun and am sure we will see something from it too.
Sony
Sony need to stop announcing new stuff and announce when the current stuff in development is coming out. Home, Little big planet and loads of other stuff has been all talk talk talk. Killzones not till next year and we really need to see some good stuff from Sony hitting this year.
Motorstom 2
and Resistance 2 are going to be the big titles for them this year and they need to show trailers and gamplay demos of both, to get the hype really going. God of War is a massive IP for Sony and I think God of War III will get announce and arrive sooner than we think.
Small titles like Flow have been big for Sony too, so i think they need to talk about new stuff coming from those developers.
Nintendo
Animal Crossing Wii with good online play! nuff said!