Amanda Tapping has posted to her official website that she will be appearing in 15 of the 20 Stargate SG-1 episodes for Season 9. After having her baby in mid-March, she will return to the show in May. Read the full story here:
Amanda Tapping’s New Year’s Message
It is not clear whether Claudia Black will film all five of her episodes before Amanda returns, or whether there will be overlap for the two actors.