https://lists.debian.org/debian-devel-announce/2021/07/msg00003.html
Tentative Bullseye release date isn’t to far off – 2021-08-14.
Does it still make sense to have Buster (2019) based release?
Or make a Jessie (2015) → Bullseye (2021) jump?
PS: I am biased, everyone around here knows my views on legacy software