But at the Light Side ending, which i think is canonical, *SPOILER*: U capture vader and they take him into a force cage so he cant get out.
we all know if he dont get out then theres no Original Trilogy, so they gotta explain it somehow.
Yes, that possibility is subtly hinted at in TFU 2's ending.
"There is something going on in time and space, and beyond time and space, which, whether we like it or not, spells duty." -Winston Churchill
"For of all sad words of tongue or pen, The saddest are these: 'It might have been!'" -John Whittier
"Apathy is death." -Kreia