DriveClub director tells fans to "expect a big announcement".
Roll7 partnering with Badland Games on two boxed versions.
Including USB music playback and support for 4TB drives.
Arrives in Europe the same week as North America.
Runs April 26 to May 5; play it to unlock DLC in final game.
Latest report says new console will be announced before October.
Prototype devices are available in Sony's Research and Development labs.
Game launches April 15, with the animated film coming shortly after.