Details are scarce at the moment, but it seems well be getting a new Secret Lair Commander deck sooner rather than later
On the other hand, Jeskai and UW Control aren't that far away from being top-tier decks, and it's possible that unleashing Jace, the Mind Sculptor would lead to the return of hardcore tap-out control, which I would enjoy but many people dislike

The Great White Way Archived August 22, 2022, at the Wayback MachineTrue Blue Archived August 22, 2022, at the Wayback MachineIn the Black Archived August 22, 2022, at the Wayback MachineSeeing Red, It's Not Easy Being Green Archived August 22, 2022, at the Wayback MachineJust the Artifacts, Ma'am Archived August 22, 2022, at the Wayback MachineMidas Touch Archived August 22, 2022, at the Wayback MachineThe Great White Way Revisited Archived June 7, 2021, at the Wayback MachineTrue Blue Revisited Archived June 6, 2021, at the Wayback MachineIn the Black Revisited Archived May 31, 2021, at the Wayback MachineSeeing Red Revisited Archived May 31, 2021, at the Wayback MachineIt's Not Easy Being Green Revisited Archived May 31, 2021, at the Wayback Machine 1 2 3 4 5 "What do the different Magic: The Gathering mana colours mean?"
Both are non-rotating 60-card formats
Read More: New 50th Anniversary Dungeons & Dragons MTG Secret Lair Series Announced!