Final Fantasy XV Kingdom Hearts 3 Gravity Rush 2 Persona 5 Project Morpheus Mirrors Edge 2 (with Rift/Morpheus support) Ratchet and Clank PS4 Final Fantasy Type-0 Vita/3DS The Last Guardian Beyond Good and Evil 2 PS4 support for PS2/PS1 in native HD (rumored) Some of that is more just wishful thinking though.
the wildest dream i can have for E3 is Valve to release Source 2 and make it free to public use with royalty free! then the boom of development of Steambox games is ensured!