I wonder if they own their back catalogue multi track masters and are open to quad or re-mixed 5.1 for SACD release...???
I doubt they own it themselves. MCA/Universal has controlled it forever.
As far as the multi-track masters go? Maybe they hold them or some of them? It seems they may have escaped the infamous fire at Universal that reportedly took a lot of the old ABC masters as it has long been rumored that Scheiner had already mixed “Pretzel Logic” into 5.1. But supposedly the multis for ‘Black Cow’ and ‘Aja’ from the “Aja” album have been missing at least up until the time of the “Classic Albums” video released many years ago. Maybe they’ve turned up since then.
But unfortunately someone from here tried to start a petition to get Universal to release these albums in 5.1 and was met with a “we’re not interested”. IIRC.