Sony Interactive Entertainment Japan Asia (SIEJA) has just posted a teaser trailer for what possibly could be a new first-party game with the codename of "True End of Century RPG" for PlayStation 4 and PlayStation Vita. No further details are known yet, as SIEJA will reveal more about this game on October 26.
In Japan, End of Century also refers to a post-apocalypse world setting that also describes titles like Mad Max and Fist of the North Star. We also see characters riding tanks and other vehicles outfitted with weapons. The teaser trailer suggests that this could be an Action RPG game, but we won't know for sure until SIEJA reveals the game next week.