Looking Into the Future: What Mega Ton Announcements could be at E3 2015?

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Nintendo announcing Pokemon Yellow remake for Wii U.
Sony showing their first Project Morpheus game for next year.
Microsoft announcing Minecraft 2
Valve announcing Portal 3 instead of Half-Life 3.
Amazon reveals their "Ouya" box at E3.

EDit: And Blizzard announcing a new RTS Warcraft game.