Yes it is my opinion that the Iraqi government will tell the US to go when the time is right. Tell rather than ask at least for the sake of appearances in the Arab world. Again just my opinion.
I think that's the last thng they want right now is a premature US withdrawal. Whatever your feelings about the rights or wrongs of the war. The US must stay the course and that means more US casualties. Pull out now and the terrorists win and it will all have been for nothing. Just like Vietnam.
The insurgents want the US to pull out now before a stable government is in power. Meanwhile they do their best to destabilise that government.
They can't be allowed to win.