My full list:

Games we already know about:
- Alienation gameplay trailer & release date
- Everybody's Gone to the Rapture trailer & release window
- Shadow of the Beast in-game trailer, releasing Holiday 2015
- Tearaway Unfolfed trailer, releasing Holiday 2015
- The Tomorrow Childrean trailer, releasing August/September 2015
- Uncharted 4: A Thief's End gameplay trailer, releasing October 2015
- Until Dawn trailer, releasing August/September 2015
- Drawn to Death trailer
- Street Fighter V trailer
- Ratchet & Clank gameplay trailer, releasing Holiday 2015
- No Man's Sky re-cap of previous footage & release date
- WiLD trailer
- Hellblade trailer, releasing 2016

New game reveals and announcements:
- Gran Turismo 7 teaser, releasing 2016
- Level-5 new game reveal
- Silent Hills reveal
- Guerrilla Games Amsterdam new IP reveal
- Gravity Rush 2 for PS4 announcement, releasing 2016
- Sony Bend's new game reveal
- PixelOpus new game reveal
- Multiple smaller games announced (the size of games such as Hellblade, WiLD and The Tomorrow Children), all timed or full exclusive
- A lot of indie games for both PS4 and Vita, will all be thrown on 1 pile for 1 big announcement

I expect that they will want to piggyback on the success of the PS4 and announce the PS5, available as of the first day of E3 for the low low price of $1,000.00. They will immediately discontinue all PS4 projects and focus solely on the PS5.

Oh, and they will announce an increase in base price for all games from $60.00 to $120.00. Like framerate, they want to double it.

God of war please another character than kratos in another mytholgy
Uncharted 4 in my veins
Crash bandicoot please ND
Gran turismo 7
TLOU 2 tease
QD game
etc

The Last Guardian, #believe