Today, Bob Iger announced that picking his successor (the next CEO) is the board's "number one priority". Bob Iger's struggle to find a successor has long been considered a black mark on his legacy. He finally selected Bob Chapek, only to oust Chapek & reclaim the role within 3 years.
This market will resolve to the name of the person who is the next CEO of the Walt Disney Company (according to Wikipedia) after Bob Iger.
More sources:
Why Disney’s Succession Remains The Biggest Question For The Magic Kingdom. Mentions Walden, D'Amaro, and Pitaro as likely internal candidates.
Disney boss Bob Iger brings back top succession candidates as advisers: report (Tom Staggs & Kevin Mayer were passed over for the role in 2020, and are now back working with Disney)
Puck claims it could be Ynon Kreiz
The Observer floats Adam Silver (!?) among other names.