I think it depends. Her actions seem so crazy to me unless she got some sort of agreement from Trish about her status in the other tribe. But if the original 5 stay solid, she's toast. It is true that just a week ago Wu was the odd man out. Maybe Trish told her it would be final 3 with Trish and Tony. But I think she was better off with her final 3 with the Brains. Time will tell.