Fakes, reals ... the main thing that stood out for me was Shinobu having a teenage body now, which brings me a few episodes back to her inviting Araragi to massage her chest, and him lamenting the fact she didn't do so while in adult form. Too bad Araragi was so beat up he has yet to catch on to the new "perspectives" that Shinobu's new form has opened up. Obviously the most important development of the arc, considering everything else pretty much ends up maintaining status quo