Sunset Riders for NES??? (Again)

[ColecoFan1981]

Does anyone know whether or not an NES release of Sunset Riders was ever planned? I do understand it would be heavily watered down to fit that system's 8-bit architecture, along with Nintendo of America's policy of censoring including removing most Native American references and dressing all the girls in moderate fashions, but I'd like to know whether or not the 4-player co-op missing from the Sega Genesis and Super NES versions, as well as choosing from all four players in the arcade and SNES versions, could be retained there?

I'm also wondering whether the absence of 4-player co-op from the Genesis and SNES versions was due to the memory sizes of the ROMs.

~Ben