I think IGA relying on how other developers "hit" an idea is a flaw on his perspective as the main head of a franchise like Castlevania.
He should be relying on himself, with trust and honesty. If he can't, someone else has to do the job, simple as that.
I would definitely play Megaman 9, because of its Famicom approach, but for Castlevania, I'd rather play it ala-DXC graphics. It really worked for me. Let's see KCET do that in high-speed frame animations.