I realize Im super late with this for the April release, so it’s probably a discussion for the next incarnation. (Although depending on the complexity, I might be able to put in a PR!) However, recently, i’ve been using the permadisp in scikit-bio (or betadisp in vegan) function to test dispersion in parallel with my permanova or adonis. It’s a nice compliment, since dispersion in one of the groups can drive differences in beta diversity (sometimes greater than the between sample difference) and/or reflect community instability.
Would there be interest in adding this functionality to the diversity plugin now or in the near future in getting these into QIIME 2?