Harmy, is it not a better option to leave ROTJ workprint the same as 1.0 in view of the structure? So it would be easier to mux another audio tracks/languages to it. I also would prefer a large mkv file like ANH and TESB. I know the workprint will not be the final release, but it would easier to handle it, also in case of spotting errors. If the resolution or the encode is higher bitrated, it is easier to recognize.
Anyway, thank you again Harmy for all the efforts you put in!