Hideo Kojima recently released on Twitter a new image, which you can find below, which suggests he is working on a trailer for The Phantom Pain from release at the GDC next week. To suggest the mysterious title is the name of the file that you see on the screen: " TPP_GDC2013_720p_ESRB" , where TPP indicates just the initials of the mysterious title that many think match 5 MGS or MGS: Ground Zeroes. Stay tuned because we will keep you updated.