Greetings.
Just to chime in on the Tatooine thing...
I was never a fan of Tatooine being in the PT. It all depends on what lines in Star Wars you want to give your attention to.
You are focusing on Ben's line about Anakin "should have stayed here," and taking it literally. What if it's figurative or he was actually quoting Owen? "Here" meaning WITH his family not necessarily a defined place. Otherwise, think of Ben's line in ROTJ: "To protect you both from the Emperor, you were hidden from your father when you were born." With your father's name? On his home planet? To paraphrase Comicboook Guy from the Simpsons: WORST HIDING PLACE EVER!
Getting rid of Tatooine gives you two opportunities:
1. To not retread old ground. According to Luke, If there is a bright center to the galaxy, Tatooine is the planet that is the farthest from it, yet it is in FIVE of the six movies.
2. To create more variety of environments. I always like that the OT had such a great variety of settings: ANH- dessert and high-tech station. ESB- snow, jungle and cloud city. ROTJ- dessert and lush forest. What new setting can be introduced in NPT?
Its a great big galaxy. Where else can we tell your story?