I am wondering how they are going to use Sam this season.
Poorly.
There is a lot you should look up if you can. Amanda Tapping did not want to do Atlantis. She was forced to by her contract. If I can find the Gateworld interview it's amazing she is being polite and professional but it's very clear she wanted to move on after SG1 was canceled.
Meanwhile Higginson moved to Canada because she thought she would be on this franchise for 6+ years and she gets completely fucked over. The issue with Jessica Steen's Weir was she didn't want to move / have a long term thing. Why she was hired then makes no sense to me, but then I question a lot of Stargate's motives.
At least you are enjoying the show a lot more than I did by this point.