IIRC, he posted several related posts, so I'm probably thinking of another one. There's also been discussions in slack, etc, so it's easy for me to get mixed up when I heard what, but I think most witnesses are familiar with the concepts from previous discussions.

I expect some kind of change will be made to address the potential for voters dying or losing keys at some point, but my guess is that it's not on the immediate radar for change (I'm not even sure yet that the curation changes are, and those are a pretty pressing concern, IMO).