Ooh, epic quests seem to be new; just implemented today on DMM? It seems like they got around the technical issues of reprinting raids by... remaking them into advent style quests? But with some differences (it appears that there's just beginner and standard difficulty as well as there being two types of material drops instead of four).

Also, Sphinx reprint. Logically, Assault (M)/Defender (S) becomes Assault (L)/Defender (S).