Have the DS be destoryed in ANH and have Vader talk with the Emperor.
No Mustafar in ESB have Endor
Put Coruscant in ROTJ, but Endor be the moon
Have the duel be on the DSII this is the only way it will work (unless if GL does something radical for the inevitable Archival Editions)
And for Episode one cut those plot line and undoable vfx shots
And definately use foriegn language tracks for aliens, such as Japanesse movies, Passion of the Chirst, and maybe use Russian or German reversed for the Gungans, and for the pronouns issue I wouldn't worry about it cuz most languages have there own pronouns for words like that.