Torrie Wilson was fired yes
Steve Austin left because yes he didn't want to job to the Coach, but also because no matter of the result, JR isn't coming back. He is still with the WWE, JR is working on development.
As for Christian, he was offered a new contract but to sign it straight away without any time for thought. Christian turned around and told them where to go, however, he'll hang around until Taboo Tuesday to see his peers and then will depart.
Christian will go fine at NWA/TNA. He's a smart guy, I think he'd have licence over his gimmic and character name. If not, well he'll survive. I mean Billy Gun, the Road Dogg and the Duddly Boyz are all over at TNA and they are just as popular and without those old WWE names