Virtual conferences are terrific. I just helped host the AirMiners conference [1] on carbon removal on May 13. Because it was a virtual conf we were able to achieve top speakers, international attendees, and just seemed so much more effective. (KSR's keynote is here: https://youtu.be/9Pw0n0CeK0k)
It's going to be an uphill battle to get me to attend an in person conference again.