Warner Bros. will not be holding any panels during Comic-Con@Home. This report was confirmed earlier today when the Saturday schedule for the con was released.
This means that there will be no updates given nor footage shown for Godzilla vs. Kong during the event. While this will certainly be a disappointment to many fans, it's unfortunately not a surprising development given that the film was recently delayed until May 21st, 2021.
However, Legendary Comics will be holding their own panel during the convention. While no Godzilla vs. Kong news will be released during the panel, there is a chance that updates for the upcoming GvK prequel graphic novels will be revealed. Although, even this is somewhat of a longshot and not likely to occur.

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