The DVD’s were released in 2004, two years after AOTC and a year before ROTS. So perhaps a new release will happen between Episodes 8 and 9, and this also almost fulfills the 7 year pattern.
Or something.
The recent pattern has already been somewhat broken by the 2015 digital release, so this means that the OOT will absolutely arrive in 4K in 2022. Yay!
On the other hand, if we’re going to count the digital release as the saga’s first time on a new format (and we might as well), that means the gap is now only four years and we only have two more years until 4k!
Also, there’s been a reissue of the blu-ray every two years. Theoretically that means we would be due for another physical release of some kind this year, even if it’s just another reissue.