Could be. We will see what happens. I still maintain that Obama, McCain, Lindsey, etal., has to do something to rescue their Al Quida and muslim brotherhood allies or Assad will kick them out of Syria [defeat them]. I jusy don't know what they will do or when they will do it. I do believe that Putin is serious as he is fighting for Russia's economic life because if Obama, etal. and Saudi Arabia are successful in installing a regime in Syria that will allow the Saudis build a pipeline through Syria, Russia is in deep, deep trouble economically.
It all depends on Putin's reaction and Putin is showing that he is serious. What happens from this point on remains yet to be seen.