Considering that Palps had a clone body in TROS, the way he died in ROTJ doesn’t matter.
Killing him differently couldn’t prevent producers and script writers bringing him back by cloning.
That is kind of a problem in itself, nobody actually dying in Star Wars. It dramatically cheapens the stakes, to the point where some of us are thinking “Oh they brought (insert character) back from the dead now. Sigh I wonder who’ll be next to come back” or “What contrivances are they going to use to bring X back next time?”
Did JJ comment about bringing back Palpatine for TROS in the way he did, cheapening the efforts and and story of the Original Trilogy, just for to have a “big bad” at of the TROS?
Whether it is Lucas changing his mind and bringing characters back (or giving the “okay” to being them back like with Boba and Maul), or Lucasfilm reluctant to kill off characters (because they are valued IP and that merch and licensing deals are too sweet to lose).
If they bring back to life a certain imperial character from Mandalorian at some point in the future, then just what is the point of being invested in Star Wars on any emotional level, if nobody of note actually dies. They just reappear at some point in the future. It is nearly as bad as Filoni’s reluctance to kill off any of his characters from the animated series, even to the point of bringing the time travel “World between worlds” gimmick to save certain characters.
Did George plan on brining Palpatine back in any of his many Sequel Trilogy ideas?