Matthias disagrees: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=942106#73
It should be technically straightforward to make a pandas2 package (start from the debian-v023 branch and drop the python2 part), but you'd have to upload it because DMs can't upload NEW packages.
(Only pandas would need to be split - our current statsmodels version still can support Python 2.)
