Hi Simon, Thanks for your interest in the calendar! I am not a regular QEMU contributor, but I am a longtime user, and ran the calendar in 2020. I also put out a submission request for the calendar this past year, but there wasn't much response. The cost to host the calendar is trivial, we just need to convert some of the sysadmin responsibilities, and that is in progress.
As far as future calendars go, the effort to construct a new calendar with novel, thematic content is substantial. Some of the difficulty lies in the technical element, but a lot of it lies in the synthesis and ideation. In 2020 I had a number of community submissions, and good pointers, but I also put in substantial effort, which I was capable of as a result of a holiday sabbatical. This year was a little different. I'm not sure if others in the community have the same perspective, but that is my perspective, and I would be committed to the 2023 calendar if folks were interested. I assembled some resources for the 2022 calendar, but I think with a little more upfront planning, and some directed request, I can coordinate a much better outcome for 2023. Thanks, Eldon