Tables could be limited depending on what the ED does with regard to COVID 19. All I know is current holders of a table registration, going back to April 2019, have preference but the table or tables may not be in the usual location.
That said, there have been requests for refunds which the ED accepted prior to May 7, 2021. So, some tables may have been freed up. Register as soon as registration is open preferably on line.
