I note that they have plans to reopen the card room. with the caveat that maximum seating to still be established.
6 max at the very most I would reckon. Thats the number I think that would get players in, plus make room more profitable as faster games = more rake.
3 or 4 handed no point, casuals wont play as lose cash too quick. 5 maybe, but if they can figure out a way to get 6 round a table I think that might just solve the problem.