How about a 3D remake of SotN. SotN is seems to be the most liked game among fans and I think that a 3D version of it has potential. Think of a merger between CV64/LoD, LoI, and SotN with LoS graphics. In other words, all the SotN areas in 3D and the camera is from behind Alucard. The areas will still have plenty of platforming and essentially the same enemies. Combat will be similar to CV64/LoD and LoI (not arena combat like in LoS). If executed correctly, it could eclipse the original SotN.