Umm...yeah, definitely an odd chapter. And the whole two month skip is interesting. Seems like the mangaka wants to put some time in between these events.
Anyway, I'm guessing that this new innocence will lead to a new exorcist? I hope this plot will have an impact to the overall story and not another side quest thing.
Btw, does anyone feel like the artwork has changed since the Level 4 akuma fight? Ever since then, I feel the art has more of a dreary, gothic, dark feel to it than before. But don't get me wrong, its totally a good thing. *Shrugs.* I dunno.