Only if it were part of a later reboot (as they do with most of their franchises). If they were to make a plain alternate ROTJ, that would enrage a lot of OT’s fans (not profitable! 😄)
You sure? My impression was that fans obsessed with canon are not the mainstream.
The concept of “good but not consistent with the predecessor” is quite easy to understand, the only ones who wouldn’t accept are probably those emotionally invested in “the OT as the true story”, and I doubt that’s a mainstream sentiment.
Most would be curious at least - a curiosity that could be ignited into a flame of passion and desire, given proper input…