I don't think Konami listens at all at this point. I think they're just looking at other popular games and then try to see how they can turn their own franchises into those. So, with LoS they essentially listened to God of War fanbase more than the CV fanbase. 
"Screw what our fans want! Now, what can we do to please the GoW fans?"
Whenever (if ever) Castlevania comes back, it's gonna be 100% what Konami wants it to be. Hopefully the company will have some new creative blood at some point, and something good can come out of it. My only hope right now is that Konami wants to please the Dark Souls crowd and makes a Castlevania inspired by that. It could really go either way but I think the foundation for a decent 3D Castlevania is hidden within Dark Souls rather than God of War.
As for 2D Castlevania, it may very well happen after Bloodstained, but I bet Konami is genuinely uninterested in 2D action games these days. I would've thought Shovel Knight (and all the other indie hits) might've made them interested again, but it doesn't seem like it, sadly.