Samsung should really take a page from HTC's book and put more focus into low-light performance (both with and without flash), rather than worrying about cramming in even more pixels. The camera in the vanilla GS4 is already more than sufficient for any recreational user in daylight. (And non-recreational users won't be using their smartphone camera anyway.)
So they're developing a camera with less than half the resolution of the already released 41mp Lumia 1020 camera?