He is killing off the Y heads. They scared
The more desperate they get, the stupider they will get and the more mistakes they will make. Theyre going to get more and more dangerous
We will see
That is the hope. I have always held the opinion that he can't take it back until Bidan has crossed the 2-yr marker. I believe I read somewhere that ge then would get the remaining years plus 4. but I could be mistaken