Cersei and Margaery what will happen?

[Man of the North]

I am also certain that Jamie and Tyrion are not going to be directly involved in Cersei death. Cersei has ticked off plenty of people, so there are too many to count right now.
But Margeary is another concern of mine. She is accused of adultery, and the high septon is not going to let her off so easily. Are they going to annul the marriage with Tommen or stone her to death? I hate to see her get hurt in all this, but she is playing the game of thrones, so there is no way she is going to be the same afterwards, especially with George writing the script.

[Aegon the Unworthy]

I swear Im not picking on ya Man o'......but the line is pretty specific

The old woman was not done with her, however. "Gold shall be their crowns and gold their shrouds," she said. "And when your tears have drowned you, the valonqar shall wrap his hands about your pale white throat and choke the life from you."

As has been revealed the "valonqar" translates to younger brother....Im not so sure Tyrion or Jaime would actually do the act but the implication is they would have a direct hand in it. Unless yer actually discounting the prophecy and thats cool....is there an alternate interpretation youre proposing?

Now on another note, if we've all agreed that Jaime is finally taking the responsibility of his role as Lord Commander of the Kingsguard seriously, and is on the arc to redeem his "honor"....then is it possible that at the end of AFFC he is returning to Kings Landing and will in fact be defending Cersei the Queen Mother in the capacity of his office. It will chafe Im sure, he finally makes the cut between the two of em and then circumstances and duty drag him back.