I can't see the band repackaging their stuff again. In a recent interview Tony said that both he and Phil always vote it down whenever the record company suggest it. Unlike some bands, Genesis don't believe in repackaging the same stuff ad nauseum and they've never gone down the road of adding "newly discovered bonus tracks" decades after the event. Nick Davis is on record as saying that the new mixes are the definitive versions of the albums.
What is a shame is that the box sets in which they were released are no longer being produced. Although the mixes have been released individually, the box sets each contained bonus discs of the B-sides in new mixes