What we know so far:
The Keynote will be 90 minutes
Capcom: will announce a new game
David Jaffe: will announce his new game
SCE San Diego Studio: will announce an "unexpected" new game
SCE San Diego Studio: MLB 15: The Show
From Software: Bloodborne
Hello Games: No Man's Sky
Ready at Dawn: The Order: 1886
Naughty Dog: Uncharted 4: A Thief's End
EA: Peter Moore will show/announce 'something'
Supermassive Games: Until Dawn
RAD: Morpheus
Maybe:
SCE Bend Studio: will announce a new game
Tequila Works: Rime
Have I missed anything?