Hey all,
After the patches to the definition following the previous hand-coding run (see older threads) I've run a second set of tests. These can be seen at https://commons.wikimedia.org/wiki/File:Pageviews_QA_2.png and https://commons.wikimedia.org/wiki/File:Pageviews_QA_jittered_2.png
There's nothing particularly shocking in the new definition; it follows the seasonal pattern that we're used to. I think we can call the new definition done, with these tweaks! It's also not as unstable as the legacy definition (good luck to whoever now has the responsibility of explaining why pageviews abruptly halved in the middle of February).
Have fun,