The only close to official word is on Sweetwater's website. "Estimated December 2026" is what it says now, but it's also said March, then June, then October at various points this year, I believe. Not official, but Eric Klein said something similar in a thread on the gear forum:
https://thegearforum.com/threads/digital-igloo-eric-klein-ygg.198/post-502029
According to that post, there's apparently a louder subset of Stadium users than those of us growing impatient about Variax compatibility. I find that hard to believe. :-D