Oh, nice! I noticed this too, but didn’t put it in my post here: Obscure AO Trello Updates (kinda)
Reason being, I thought that Scorch Magic was new because I had always remembered Apocalypse Bringer Magic being at the start of the Ancient Magics list, but I wasn’t 100% sure if it was new or not because maybe I had a bad memory.
Anyways, it’s cool that another grand fire magic has been added to the list. Now we’re only missing two grand fire magics in AO, aethereal flame and darkflame.