So I propose having the repo in place, and using it for targeted proposals where we really want feedback from early users, and hold off formalising anything more until early next year, as you said.

Probably some context-setting is in order. This meeting is primarily devoted to getting yes-or-no decisions made on suggestions which have fairly clear outcomes. In other words, it's effectively a "shortest job first" throughput-maximizing endeavor where we try to pay down some of the massive triage debt we have while also getting as many suggestions accepted or declined in a short turnaround time.