Suggetions from @nshahquinn-wmf :

• Consolidate Analytics/Systems/conda-analytics into the conda-analytics section in Analytics/Systems/Conda.
• Go through Analytics/Systems/Conda and make sure all the information specific to anaconda-wmf (e.g. the section "stacked conda environments") is moved into the specific section.
• The "Choosing between Spark3 and Spark2" on Analytics/Systems/Jupyter is really about how to downgrade from conda-analytics to anaconda-wmf after the migration. Move it to Analytics/Systems/Conda and change the title.
• Update the "command-line interfaces" section on Analytics/Systems/Cluster/Spark to explain what will change with conda-analytics/Spark 3 (I highly recommend the approach of covering both the old and the new systems in two sections on the same page so that people can easily consult both during the transitional period).
• Make sure that all the important information from your very nice announcement here is covered in Analytics/Systems/Conda#Migrating from anaconda-wmf to conda-analytics