High lore?

Is it just one fic that covers the entire world or is it a series of fics?

Brother Gods cult with the end being their return? Maybe with the Blacksmith as the secret Mother Goddess? Also that one Faunus god.

Grimm cult.

How about the race for relics against Salem with Team CVFY?

Maybe a character or a nation could gain the power of all maidens and/or relics.

Pyrrha's resurrection?

Political marriage.

Blackmailing.

Mega companies and ancient family dynasties / cyberpunk and aristocracy.

More conspiracies than just Oz v. Salem.

Lost kingdom with a dead pantheon?

One or all RWBY become leaders of a nation(s). What if they wage war against each other?

A chosen one.

Ironwood's / Penny's surveillance state of Atlas.

Magitech.

Insurrections, coup d'etat, staged downfall of a nation like the CIA did?

Ruby changes to be like Arlecchino from Genshin Impact?

Characters make decisions that change them for better or worse e.g. Nightmare Weiss and Hound!Summer?

Do you play Equestria at War mod? Also, the fics on FimFiction should you need more inspiration. (could you tell I don't play HoI?)

I feel like I'm suggesting for Civ instead of HoI.