I think a classic Castlevania could sell great once more. As you said you have that played out feeling with the SOTN style of game, they're played out, but to those who don't care who just buy them as they arrive (like yearly COD funk) they'll keep feeding the beast. At least this well over funded project is going to add a classic Castlevania stage based mode with a linear run, a boss, no XP boosts, pure roots gaming there looking to be. I'd be up for that. You can only stomp around the old 8/16bit Castlevania stuff only so much before it all runs together. If they had the visualized style of the Castlevania on 3DS or something of a sprite based smoothly animated blowout with or without the 2.5D like depth it could do well. Platformers have been coming back, this SOTN style got hot when they were hitting a wall and being ignored mostly outside of NIntendo(mario) circles.