I'd take a newer exploration / grinding one too, but like others here I'd really like to see a return to the old-school design.
My personal favourite is Castlevania III. I liked the ability to switch characters and the game had a few more paths to offer reasons for multiple playthroughs, but the game was still firmly focused on action. If you were to start with something like that, make it a bit bigger and spruce up the gameplay with some of the improvements from Super CV IV, I'd probably buy day one.
I also want fresh graphics and music, I've had enough of the 8-bit revival.







