As this plays out, there will be two outcomes:
1) The coup succeeds, Trump is defeated, and the conservative base abandons the GOP as it is constituted. As a result, the GOP loses seat after seat, the donors dry up, and the party withers and dies fairly quickly. The tactical win over Trump leads to the strategic destruction of the party.
2) Trump wins, and a damaged GOP survives. Whether it thrives or not depends on whether the base is satisfied with a Trump victory and continues to support the traitors, or whether Trump can remold the party.
Thus the irony of the situation. In order to survive, the Ryan/GOP-e coup must fail. I doubt realizes that. He spent too much time in the tower talking to Sauron.
If the coup succeeds then I will do everything I can to bring about the end of the GOP.