I don't see a tremendous amount of change out of the Iranians or Russians. There is some talk of them being tired, but their positions are pretty firm, they think that Assad's immediate departure would lead to a collapse of the regime. Washington also sees a rapid collapse of the regime as something that would be a boon for ISIS. They are in a conundrum: if Assad goes right away, it would help ISIS, but if he doesn't go at all, you have no hope of putting the pieces of Syria back together again.