I'd love to see them iron out some issues I have with the old canon. I'd also like it if they alternated between making classicvanias and metroidvanias, which would make more people happy, I think.
1999 game is obviously needed... There's also potential for a game between Lament of Innocence and Castlevania 3, or even another game with Shanoa, or a post-DoS game. Also, ever since the DXC for the PSP, I've been craving polished versions of the older games, especially Simon's Quest which I think could be brilliant if only it was remade. That would have me dancing on the ceiling. I think that polished re-releases would allow for smoothing out of the overall plot. Probably wishful thinking, but that's what I want, so...
Whatever they do, I want the old games to be respected.
Yes, that's the first thing they have to think. RESPECT THE LEGACY. All of it, from Castlevania for the NES to Order of Eclessia.
I'd die from happiness if they make another game with Shanoa, sequel to Order of Eclessia.
More remakes would be really nice too, but they should be side projects, while they are focusing on the "main game", like they did precisely with DXC. They released it between the NDS games.
But yes, I'd like it a lot.
Simon's Quest has been remade by Michmede in Dracula's Shadow, with a very free interpretation. He added story, levels, soundtrack...
But I consider it a masterpiece.
And the proper Simon's Quest has been recently remade for PC, I don't remember where I got it, I think someone posted the link about 2 months ago.
It's harder than the original version.
Platinum
Wayforward
FromSoftware
It'd be interesting to see a Castlevania game from either of those three. They'd be radically different from each other too.
FromSoftware crafted some very good looking games, especially Demon's Souls.
Enchanted Arms was nice too.
A fusion of those two styles could make a nice 3D anime-inspired (but not childish) Castlevania.
And I already stated numerous times my support for WayForward and Platinum if they can't make it happen that Konami Japan makes future CVs.
I just hope that, being this forum so important, someone from Konami reads it.
We are A LOT of people that want MetroidVanias and ClassicVanias to make their glorious return.