For anyone who doesn't want to wait for this to be implemented, here's a Tampermonkey script to do it: https://gist.github.com/lyahdav/30fabcfb2856a28d320114922c91a1e3

@ksmith it's a Python script that you would run on your local machine. If you have arcanist setup for development it should be pretty simple to get it working. Ideally it would just be a plugin, but I didn't look into that approach yet.

For anyone trying to get Kanban statistics / reports in the meantime, you can try this project I recently started working on:
https://github.com/lyahdav/analytics-limn-analytics-data/tree/kanban_stats. It generates a CFD (Cumulative Flow Diagram) and computes cycle time and lead time.

@raincoastchris the context of this issue caught my eye because I've really wanted Phab to generate a cumulative flow chart and Kanban statistics for some time now. I took a stab at it today and modified an existing python script to generate a cumulative flow chart and Kanban statistics (https://github.com/lyahdav/analytics-limn-analytics-data/tree/kanban_stats) but configuring it is a bit painful because there is no easy way to get the names of all the columns in a workboard right now.