The following is all the Square Enix titles that are certain to appear, likely to appear, with a good chance to appear and also the titles with little chance or no chance at all. The beauty of this year is these titles could appear in a variety of ways: Microsoft's press conference, Sony's press conference, Nintendo's live stream, Square Enix's press conference, at Square Enix's booth or simply online.
The titles certain to appear:
Rise of the Tomb Raider
Just Cause 3
Deus Ex: Mankind Divided
Final Fantasy XIV: Heavensward
Star Ocean: Integrity and Faithlessness
Hitman 6
Dragon Quest Heroes
The titles likely to appear:
Motomu Toriyama's new title
Mobius Final Fantasy
Final Fantasy Explorers
Kingdom Hearts Unchained χ
Bravely Second
Kingdom Hearts III
The titles with a good chance to appear:
Kingdom Hearts HD 1.5 & 2.5 ReMIX for PS4
Kingdom Hearts 3D HD Remaster
Theatrhythm Dragon Quest
Final Fantasy XII HD Remaster
Life is Strange
The titles with a slim chance to appear:
Lightning Saga for PlayStation 4 & Xbox One
Final Fantasy VIII PS4 port
Hitman: Absolution - Definitive Edition
Deus Ex: Human Revolution - Definitive Edition
Final Fantasy Agito/Final Fantasy Agito+
SaGa (2015)
Dissidia Final Fantasy
Final Fantasy VII G-Bike
Dragon Quest X
Dragon Quest XI
Dragon Quest 3DS titles
Final Fantasy Legends: Crystal of Space-Time
A new Mana game
Chaos Rings III: Prequel Trilogy
Final Fantasy Portal App
Triad Wars
Nosgoth
The titles with little or no chance of appearing:
Theatrhythm Kingdom Hearts
Rampage Land Rankers
Final Fantasy XI: Rhapsodies of Vana’diel
Final Fantasy Grandmasters
Final Fantasy XI Mobile
School of Ragnarok
Rise of Mana
Holy Dungeon
Final Fantasy III PS4 port
Final Fantasy V PC port
Final Fantasy: Brave Exvius
Bravely Archive: D’s Report
Crisis Core -Final Fantasy VII- & The 3rd Birthday HD remasters
Final Fantasy 3DS port
Final Fantasy II 3DS port
Additional note: They could release the trailers for the PS4 port of Final Fantasy VII and the PC port of Lightning Returns: Final Fantasy XIII during E3 but they could also easily release them before E3 which is why I have decided not to list them.
The titles certain to appear:
Rise of the Tomb Raider
Just Cause 3
Deus Ex: Mankind Divided
Final Fantasy XIV: Heavensward
Star Ocean: Integrity and Faithlessness
Hitman 6
Dragon Quest Heroes
The titles likely to appear:
Motomu Toriyama's new title
Mobius Final Fantasy
Final Fantasy Explorers
Kingdom Hearts Unchained χ
Bravely Second
Kingdom Hearts III
The titles with a good chance to appear:
Kingdom Hearts HD 1.5 & 2.5 ReMIX for PS4
Kingdom Hearts 3D HD Remaster
Theatrhythm Dragon Quest
Final Fantasy XII HD Remaster
Life is Strange
The titles with a slim chance to appear:
Lightning Saga for PlayStation 4 & Xbox One
Final Fantasy VIII PS4 port
Hitman: Absolution - Definitive Edition
Deus Ex: Human Revolution - Definitive Edition
Final Fantasy Agito/Final Fantasy Agito+
SaGa (2015)
Dissidia Final Fantasy
Final Fantasy VII G-Bike
Dragon Quest X
Dragon Quest XI
Dragon Quest 3DS titles
Final Fantasy Legends: Crystal of Space-Time
A new Mana game
Chaos Rings III: Prequel Trilogy
Final Fantasy Portal App
Triad Wars
Nosgoth
The titles with little or no chance of appearing:
Theatrhythm Kingdom Hearts
Rampage Land Rankers
Final Fantasy XI: Rhapsodies of Vana’diel
Final Fantasy Grandmasters
Final Fantasy XI Mobile
School of Ragnarok
Rise of Mana
Holy Dungeon
Final Fantasy III PS4 port
Final Fantasy V PC port
Final Fantasy: Brave Exvius
Bravely Archive: D’s Report
Crisis Core -Final Fantasy VII- & The 3rd Birthday HD remasters
Final Fantasy 3DS port
Final Fantasy II 3DS port
Additional note: They could release the trailers for the PS4 port of Final Fantasy VII and the PC port of Lightning Returns: Final Fantasy XIII during E3 but they could also easily release them before E3 which is why I have decided not to list them.