The Test Pilot dev team met this morning to discuss future changes to the Test Pilot add-on.
TL;DR: we'll be both simplifying the add-on's feature set, and rewriting it using Redux and Flow types. Danny has an existing fork that we'll bring over, but it'll be modified to use gulp for the build chain.
We're planning to start work on these changes in our upcoming sprint, which starts next week.
Discussion notes with much more detail are here: https://public.etherpad-mozilla.org/p/txp-addon.
Comments or questions are welcome