My problem with renaming the desert planet in Return of the Jedi is we already know from watching The Empire Strikes Back that Luke and Lando are planning to meet on Tatooine. Indeed if you are going to use Ben’s haunted house it too is on Tatooine. I know it’s a bugbear for some forum members but I don’t have a problem with Tatooine actually being the centre of the Star Wars universe.
In the first film Luke is a teenager. In the 20’s and 30’s citizens of nations that had developed industrial cities with such wonders as horseless carriages and giant sky scraping towers fantasised about Tarzan, The Sheik, The Arabian Knights, Merry old England etc. If you have been to Medieval England you would know it was a rough horrid nasty place full of death and the people who lived there all had fantasies of going to the Holy Land which was another horrid hell hole.
Luke thinks Tatooine is boring because he hasn’t seen it from our eyes where giant lizards and duel sunsets are exotic and interesting. I would rename Geonosis Tatooine too (still haven’t seen the TFA but Jakku seems to make more sense as Tatooine than another random world). It would take a colour shift but it would make sense.
In the first film we have a planet where the Jawas make money out of salvage, The locals hate droids, some them keeping non-robotic slaves in preference and natives are terrified of Jedi. If you were to have Tatooine occupied by the droid armies of the Republic and liberated in episode 2 it makes sense as to why twenty years later the Jawas still can make a living out of clearing the sands. I mentioned this on the Prequel Redux thread many many moons ago and then along came the trailer for TFA and it made me smile to think someone had come up with a similar idea.
Flitting from one identical planet to another is not universe building. Most of Frank Herbert’s books are set on the same planet and are much more detailed and epic than the current Star Wars universe.