The Walking Dead is currently set to deliver an eleventh season that spans across two years, and will last for 24 episodes.
Assuming production schedules are allowed to go forward without any issues, The Walking Dead Season 11 will be filming during the first half of 2021 and is aiming for the traditional October release date.
The second half of Season 11 will presumably then be held until the Fall TV cycle in late 2022.
(The remaining six Season 10 episodes will possibly be airing during that same time window).