What Comes Next in Iraq?

Iraq the Model's Mohammed says there may be attempts to form a united front of Sunnis and Shia against the United States (ht Roger L. Simon):

Clerics will not stop and they will carry on with their plans and I suspect they will launch the next phase of their plan soon after they received instructions from Syria (the Muslim scholars) and from Iran (the Sadrists).
The objective of the second phase will to move the conflict from one on the streets to a conflict with America. That’s not my personal opinion, but it's what clerics themselves are saying including Muqtada who returned from Qum in Iran to organize a joint Sunni-Shia demonstration against the occupation!!

Now the government has rise to the level of the challenge and proceed to take the most important and critical step and disband religious militias of all sorts and limit the influence of clerics-of any sect-in the decision-making process.
I think this is the best time for the new government to tackle this issue as the government now has all the factors that make such a move legitimate and necessary.