The end if the 4th quarter for The Walt Disney Company is September 30. However, since the 50th anniversary of WDW is October 2021, I think you might be right. After that date, the next huge anniversary for the company is 2023 when they turn 100. Expect some big announcements about that at the next D23 in 2021.Iger’s last day is in December 2021.
I think the EARLIEST we’ll hear about succession will be summer next year, with more substance bubbling up very early 2021.