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I'll take this as just some type of fan rumor.
I don't think Lucas would re-use Bespin in a story as "one of the many Jedi training facilities located all throughout the galaxy."
But then again, I never thought he would rape Star Wars fans the way he did with the PT and the re-made OT.
“First feel fear, then get angry. Then go with your life into the fight.” - Bill Mollison