ISON although bruised and reduced somewhat is continuing its journey in to the outer cosmos and is following NASA's projected path exactly right now, it has not changed path.
Also its not spinning, the effect is from gravitational forces, the tail is correcting itself and will shortly be pointing away from the sun and flapping around as the solar winds rush past it.

The next couple of days will confirm if ISON has completely fragmented or some of the core still remains, it some of the core is still intake we might have a good show around Christmas.