I’m part of the CoEpi project, one of the member projects of the TCN Coalition. I see that some of my teammates are searching through the OpenTrace code to see if anything there is worth taking, such as their device-specific bluetooth range calibrations. I don’t think there’s been any two-way communication between these teams.
The projects I've seen inside of TCN seem aware of OpenTrace and the code / data they put out over the last few days, not sure if direct contacts exist yet.