If they do 2D gameplay, they should do a 2.5D game like DXC, only on a console.
They could also do it like the SUPER-AWESOME "Muramasa: The Demon Blade" and "Odin Sphere" titles. Those are soooo beautiful.
If they do it in 3D, make it like Dante's Inferno... maybe not nearly as stylized as Bayonetta, but at times I was playing Dante's Inferno and I though "You know, if I squint really hard, this could totally be like a new Castlevania game" and when I was climbing ropes and swinging I though "Man, they should remake Belmonts' Revenge this way, it would be SO AWESOME".