What aligments would future calamities even have had?

[YianKutku]

Due to how all the other Calamities sounded, they were likely all Astral charged. There's a good chance that they were planning to redo the elemental rejoinings, but with an Umbral charge, starting with the 8th Calamity.

I'm not sure about this; the Third Calamity of Fire sounded like it was Umbrally charged, in that the downfall of civilization was due to drought and famine, rather than unchecked wildfires. That sounds like dry heat, the example given for Umbral Fire.

Also possibly the Fifth Calamity of Ice, which "froze the seas" and sounded more like a sort of Ice Age. The impression I had was Ice aspected Umbrally, ie making passive the waves, but I admit I could be mistaken, because Ice is very Umbral anyway, so it could well be Astral but we can't tell the difference because Ice acts like that. (My impression of Astral Ice is blizzards and snowstorms, but that might veer too far into Wind.)

[Iscah]

The impression I had was Ice aspected Umbrally, ie making passive the waves, but I admit I could be mistaken, because Ice is very Umbral anyway, so it could well be Astral but we can't tell the difference because Ice acts like that. (My impression of Astral Ice is blizzards and snowstorms, but that might veer too far into Wind.)

Blizzards are possible for astral ice, or maybe snow in general, but glaciers could be another option for "ice in motion". Or would it be more about ice that is forming and growing versus solid ice that has already set hard? Are icicles active or passive if the moving unfrozen part counts as water?

Maybe snow vs solid ice as the simplest division?

I wish they'd properly lay out the divisions instead of giving the one "heat vs flame" example and leaving us to guess the rest of it.

[YianKutku]

I wish they'd properly lay out the divisions instead of giving the one "heat vs flame" example and leaving us to guess the rest of it.

Agreed, yes. Every time I see the "Umbral Wind" weather in various zones, I always wonder what that actually means. The immediate thought is that it's a still air, but surely that's a lack of wind. In practice, "Umbral Wind" appears to just mean "adds a green filter".