I definitely like the idea of having something engaging going on during the second round. It would be a shame to lose all the post-consensus engagement we currently enjoy.

I like the idea of spectator mode! Maybe a bit challenging on the technical side, as the video conferencing is decentralized. We wouldn't want each video participant to be responsible to upload their stream to n additional peers for viewing, because we need to provide maximum possible bandwidth to those who need it to reach consensus.

But perhaps there are some clever solutions.

Thanks for the good ideas.
James