Bashar Al-Assad: What to Expect When Syria Crushes Its Rebellion

As I said before, I don't think Assad can win, but this is what will happen if he does. Not supporting the rebels could turn the country into Somalia in a year, and Pol Pot's Cambodia in two. And will be much more likely to destroy the countries around it.
"Assad regime forces will exact revenge against the Sunni-majority opposition and perpetrate mass sectarian atrocities. As Assad’s army retakes parts of the country held by the opposition, regime forces commanded by Assad’s Alawite minority sect will carry out summary executions, imprisonment, and torture among the Sunni-majority opposition. In a country where the confessional balance has always been at risk of tipping, confessionally mixed cities like Homs and Damascus, where Alawites and Sunnis live in close proximity to one another, will erupt in sectarian bloodletting."