I would expect to see a lot of actions of todays type over the coming period - geographically dispersed small scale attacks (on symbolic targets if possible) designed to keep ypg covering a larger area than they really want and stopping them clearing up/concentrating in raqqa. I expect they will be trying to make it appear as if they are FSA or other allies, maybe actually infiltrating these groups as well.
edit: to add to this, there are rumours that serious the ISIS advance in al-hasakah overnight was made possible by a load of NDF (iran backed pro-regime militia) who hold most of the city unveiling themselves as ISIS. Doesn't sound likely, but also doesn't sound impossible.