I'd thought 'general discussion' but have been considering this further and imagine other options to be better suited to the potential format? Others more experienced would have a better idea on how to work it into a programme format, but perhaps we could all nominate topics, and there could be a random draw? Or a finding of experts to pick brains of?

Topics that aren't heavily seasonally-specific, hopefully, so it won't matter which hemisphere we're in. :)