Here is the deal guys, I think the "souls" formula games should receive other themes as Samurai and Steampunk, obviously not being called souls like Bloodborne.
For the Samurai idea, FS is a Japan company as well as Sony, and that could be a nice game to boost HW sales in Japan and also spread more worldwide the theme, because I do think we could and should, in general, appreciate way more this theme around here.
But how would it work? We could have classes as heavy samurais, focused on power and lacking speed using cool samurai (and even some european) armors, light samurais, wearing cool kimonos and with good power and speed/mobility, ninjas with cool stealth suits focused on speed/mobility, sorceress with cool robes/kimonos and focused on magic and elemental attacks, and alchemists, western like dressed focused on cience (not very evolved) using cure and some inventive weapons.
We could have all kind of weapons fitting all classes as hammers, bows, kunai and shuriken, short shorts, some western swords, claws, spears, ad stuff like this but of course with a main focus on the japanese swords, the katanas.
If some of you guys are familiar with the Way of the Samurai series, it shoud use a katana system like there, with them being diveded by stances in big categories that would drastically shape their use form, but also individually based to more specific properties and uses. With katanas ranging from lower usage to high usage, left or right body weight based, or even explosive speed based when drawing as late as one can to boost it speed and power to being able to use two swords.
The plot could be about the Shogun losing his mind and opening the gates of the hell or some crazy shit like this that can put monsters in the game :P, where you, who lost your honor, as well as everyone in the world (Japan), should fight to get it back, and that could be the currency, honor, or some other thing other than soul and blood :P
Now about the Steampunk..., just let their mind roam free and dream about all the crazy cool stuff we could get with it, fighting for steam or pieces of some highly technological materia that allowed that world to be real and became people's life, and desire.