If there's time, it would be great to get a verdict on XLSForm spec proposal: add syntax to make it easy to use a value from the last saved instance or at least a sense of whether TSC folks still want to think about it. I have also put out XForms spec proposal: add event fired when new repeat instance is created as a companion for repeats that would be good to draw attention to.
I'm pushing on these because they would make https://github.com/opendatakit/roadmap/issues/30 available to most users and thus would enable moving that item to the done column. 
Dynamic defaults more generally have also been requested for a long time.