It is not being currently worked on, but should not be super hard to pull off. It's mostly wrangling CI a little bit
I think that the bigger issue is whether we keep supporting 3.7 too, meaning we release 4 versions. We are already in the top 20 offenders for how much PyPI storage we use because our wheels are big. Releasing 4 versions per macOS and Linux would make us even worse. It would also make our CI slower.
I am personally in favor of swapping out 3.7 for 3.10. At this point, it seems like most environments have access to at least 3.8 and 3.9. What do you think?