while the weapon variety among the humanoid enemies in factions is still quite varied I could see it becoming an issue/ possibly being repetitive if the factions just continue to have the same weapons types present in each enemy (asides from the occasional unique units, faction specific moves, and some factions having an axe unit or a club unit) but I think it would add some more variety to enemy factions if they were to use different weapon types from eachother (along with different respective move sets per weapon type).
although it would be fine if they all still used the same weapons as eachother but just increasing the amount of weapons present in the factions (the former probably being easier to implement and honestly more preferable)with future enemy factions being able to use dual daggers, curved swords, wakizashi’s, magic overall, and the eventual other planned weapon types would be a great way in my opinion to meaningfully differentiate enemy factions and enemy variety