Ok, more info characters, story and gameplay of the new Experience/bamco DRPG :
http://gematsu.com/2015/02/bandai-namco-experience-announce-ps-vita-dungeon-rpg-ray-gigant
Seems Bamco contacted Experience because the producer enjoyed Demon Gaze.
Battles are third person, but crawling is in first person. and the game is story driven ? It sounds like Sol trigger on psp which I enjoyed, so I'm looking forward to seeing how this turns out.