How practical/doable is it for them to re-use the 2004 source, but correct something like the lightsabers? And by "practical" I mean on the LFL scale of effort and quality control, not the normal scale everyone else has to go by.
(Also, on the subject of using TV broadcasts to predict possible future blu-rays, Raiders is on USA this week, if anyone is curious to see if that new CGI cliff is still in there.)