As an update, the ST rotation has not changed for me aside from one small change: Thunder III instead of Thunder II inside the rotation. This is because the extra cast time on Thunder III makes the rotation more fluid now that we can't "cheat" on Umbral Ice to get a tick of mana at or shortly after our Fire III casts.

As for the AoE rotation, it hasn't changed either but it's just a bit less now than it used to be as we can no longer fast-cast Flare and Blizzard II's damage was reduced.