Star Wars does have it's fair share of changing stories! Lol.
I have some memory that Lucas had once claimed there was overall a 9 part story. But in reading some articles the last couple days some who once spoke to Lucas seem to claim there was also once a plan for a 12 part saga.
I guess it's the term Episode 7 that seems interesting. Episodes 1 - 6 told a complete story - the story of Anakin/Vader. That story appears done. So you would imagine another trilogy would be a fresh one but set in that universe. But using the name Episode 7 perhaps suggests to some a continuation of that supposedly told story. But where would it then go? Would it feed back to something Lucas had in mind?
'If the Apocalypse starts, beep me!' - Buffy Summers
'The sky's the limit.....' Jean-Luc Picard, 'All Good Things'
courtesy of Saquist