This is probably a new 16x transfer to DVD without the Lowry cleanup, which was done to the SE master print.
If I am wrong and this is a 4:3 LBX transfer, I wont buy it. As for having the 2004 versions included, luckily I didn;t buy the set in 2004 because I was holding out.
I do agree though... they should give us the 70mm 6-track as a 5.1 Dolby Track, just like was included on the original Spartacus DVD.