I'm indifferent to Christian. I don't really care for him as a character, and he's just there. Never appealed to me, back in WWE or otherwise. Whatever happens to him, happens.
I could actually picture Christian saying he would rather leave TNA than joining the Mafia, and he leaves
And Ron Killings is buried week after week on SD.
Blaze if you look at the article closly, it says that he might jump back to the WWE for the money. He wants to take care of his financial situation for his family so that it can help them in the future. I don't think he really cares rather he jobs or not.
And Cage only signed to TNA because of the scheldule that they have. It allows him to spend more time with his family and have a very light road schedule.
Then again, Jeff Hardy was let go, went to TNA, returned, and is now in a constant main event push.
Ron Killings is certainly doing more than anyone would truly expect him to be booked to do.
And I am sure Christian Cage has more stroke inside WWE than any of them to keep them from jobbing.
Altough imo, it all depends on which brand he ends on. If it's Raw, he will never be a main eventer, I can almost guarantee it. On SD, and seeing how even though on paper they have a hell of a roster, one way or the other it comes a point where they lack either true face or heel main eventers, so Cage would get his chance there.
That is my point.
Jeff Hardy was LET GO not just left went to TNA.
Killings also LET GO.
Christian left WWE to go to TNA that is why I think he will not be treated the same way as the two you named.