I'll be there. The two relevant threads are OpenRosa spec proposal: add optional /client-settings endpoint and Proposal: publish a settings key/value standard. Thanks to @tomsmyth for the great comments and suggestions and to @martijnr for sharing information about Enketo configurability.
After more reflection, I suggest coming back to this when Team Collect has a more concrete proposal to put forth. I wrote a bit more about this in the last TSC call thread.
Possible additional topic: daylight savings time is impending in North America (March 8) and then in Europe (March 29).
And another one: XLSForm proposal to calculate a value when another value changes -- it would be great to get more eyes on this, especially @Ukang_a_Dickson's.