Quechua/Inca influence in Dawntrail lore

[Fenral]

Unfortunately, my own knowledge in descending order is Aztec -> Maya -> Inca, and even then I need sources at hand to help with recall.

I know we're probably too far south for that, but since we're potentially dealing with a kitchen sink situation, is there a possibility of discovering a doomsday calendar as well? It'd be a good way to establish a possible second Endsinger-tier threat without needing to start laying any specific groundwork.

I'd say I want a Legends of the Hidden Temple reference, but we already got one of those back in Shadowbringers.

I needed to search, but then a lot came flooding back.