Agni's Philosophy - Final Fantasy Realtime Tech Demo

Square Enix released a new tech demo at E3 today and it looks great! The demo, which runs on the next gen Luminous engine, is rendered entirely in realtime. At this point, Square-Enix hasn't clarified whether "Agni's Philosophy" is related to Final Fantasy XV or not, despite being called a Final Fantasy demo. It may be nothing more than a tech demo, just like the Final Fantasy VII HD demo that SE showed many years back.