Something about Gran Turismo maybe a teaser, Guerrilla new ip. Media Molecule might show a teaser though they likely will be most about Teraway PS4. God of War id say is a sure bet to be their big reveal.

Something big about morpheus, a specially designed game for it and potential release date.

I'll say from E3 and Gamescom (Got to have new stuff at both) :

Announced: UC4 to take centre stage, flanked by the AAA indie No man's sky. Something from the other popular announcements.

Unannounced: Horizon, GOW 4, something Gran Turismo.

I expect Sony may try to be the partner for Star wars Battlefront.

I expect no vit again... lol

God of War, Uncharted Gameplay, maybe new Resistance, Gravty Rush 2 PS4 Exclsuive..., Tearaway, Kingdom Hearts Trailer, no mans sky, GT7, Morpheus, Indies, ps exclusive content for games like the new ac and Destiny and more but i'm to lazy to wright more lol

I hope for this -> http://gamrconnect.vgchartz.com/thread.php?id=198284

God of War 5 trailer

One game we will see for sure at e3 is the ps4 game from level 5, as they announced it at december

Problem with Sony is that unlike Microsoft and Nintendo they are present in way WAY more press conferences through the year.

E3
GAMESCOM
TGS
PSX

so they kind of separate all their content for all of this press conferences, if they were to just focus all of their games (japanese and western stuff) into one conference (E3) it would be a LOT of games, so i dont really know how much i should expect now from E3 knowing that PSX is now also a yearly thing as well.

It wouldn't surprise me if we hear something from Guerrilla Cambridge's game, my guess is it being a new Killzone. It should be in development for almost 2 years when E3 is here (Mercenary was released September 2013).
Also, Guerrilla Games Amsterdam has to be there with Project Horizon!

- Horizon maybe
- Level-5 game
- Media Molecule new IP
- and some other shit I can't remember

I honestly don't expect Sony Santa Monica to show anything.

Too early me thinks... :/