Isn't the term Demon Castle War in AoS? The steel plate item mentions it.
The Soldier Uniform description says, "Uniform worn by a soldier who fought in the Demon Castle War."
War is still singular, like Crisis was getting at with his main point, but the name, Demon Castle War, does appear in the game, so he was mistaken about that more minor detail.
For a 3D game, I'd really like something in the style of the N64 games, just more modern and with more polish. I still think that was the best/closest attempt to bring the classic Castlevania feel to a 3D world.
For a 2D game, it's hard to say what I want. I would be fine with both classic and Metroid style, though in the case of the latter, I would like another Belmont game, or at least someone with a whip. Give me a game that blends the two styles, like CotM and HoD attempted.