Our allocation is this for the game. Not counting but looks alot more than 500 even when segregation is taken into account.
Celtic also took away a few rows of seats from the bottom to build some sort of platform (disabled viewing perhaps) so there are less non-restricted seats than before. Also the AST is to guarantee you a ticket for the match. Can't recall it guaranteeing you first dibs on the best seats in the house... (Not aimed at HC)