392 Hemi???????????????????

I've seen some buzz around this new Hemi. I just wanted to clear up some questions I have. Is this the replacement for the 6.1, or will it still be offered as a sort of "middle of the road" Hemi? I've also heard that the power output will be north of 500hp. I really hope this is true, so the Challenger can go toe to toe with the GT500 and the Z28. Is it NA or supercharged? Or is it too early to know? I appreciate the answers guys!