These are some cool ideas I might incorporate in my Prequel rewrite.
Owen was Obi-Wan’s brother.
Then why does Owen hate Obi-Wan so much?
Vader was already in the suit when the Empire began, he rose the through the ranks as damaged goods (mainly through being Tarkin’s henchman).
When did the Empire begin? What put him in the suit before he fought Obi-Wan?