I actually totally disregard Return of the Jedi to tell you the truth. Yeah the inbreeding crap is pretty atrocious writing.
I’ve never seen this version of ROTJ.
No. Once I read that the original plan was to have Luke discover he had a sister on the other side of the galaxy, and Return of the Jedi ending with Han dead, Leia resuming some powerful leader position in the newly restored Republic, and Luke walking off into the sunset to go in search of his lost sister…awesome.
Awesome or not, it’s still a synopsis that hasn’t ever really been verified by Kasdan and the others as something they were seriously considering*, unlike the idea of Luke putting on Vader’s helmet and pretending to point the Death Star’s weapon at The Emperor’s home world - an idea which DID come from Kasdan (and yes, Death Star II was even in earlier versions of the story).
*nor was the above synopsis shown to be contemporary within the time period that they were making the movie, i.e. the early eighties. At best, this anecdote seems to come from the late eighties but more solidly from the nineties.