I wouldn’t be surprised if they made Diurnal the current card buffs and made Nocturnal the old card buffs. There is no need for diurnal to be regen stance anymore since they removing shields from Astro anyway. So I think the stances will effect the cards somehow. It would also give Astros who miss the old card buffs a way to use them again and the Astros who love this current one to use this one. Kinda kill 2 birds with one stone. Also it won’t effect the seal system seeing as it’s just utility that’s changing. That way they don’t need to change Astro lore since the old card buffs would still be there.