A darker version would be cool - many Japanese series have darker and more mature themes which MMPR could only hint at when it did "dramatic" (it could do it quite well sometimes).
I tell you something, zyuranger was more violent and disturbing than mighty morphin power rangers.
there are scenes from japanese zyuranger, when green ranger was evil, broke into the megazord, and punched the rangers in the face - you dont see this in the american MMPR.
there is also a scene in zyuranger where Babboo is cooking children in a pot - again you dont see this in the american MMPR.
japanese version alot sicker than the american remake.