[X] Poll: "Yes. Hokage-sama." (Do we ask to be left behind?)
We can't do sealing without Kagome or Jiraiya's time, neither of which can be used for the period inside Leaf.
Kagome because his idea of reasonable security perimeters would wreck a training ground a week, and Jiraiya can't have that. That, and keeping Team Uplift's two biggest social vulnerabilities in Leaf while still attached to Jiraiya is just not going to end well.
Jiraiya because duh, Hokage-sama.
As for Akatsuki-killing stuff, our best bet might be implosion nuke delivered by Zephyr's Reach Sling (not the Rifle, can't seal seals) from height. That is, assuming we don't care about Naruto (Yagura is an ... acceptable casualty).
If we have to keep Naruto alive, we're screwed - we might be able to kill one S-ranker if we're lucky (Kisame, Itachi, Deidara, maybe Sasori, , if we catch them unaware), but against Hidan we're fucked with his bloody scythe, ditto for Pain, Konan, Kakuzu (maybe not), and kami we aren't touching Tobi or Zetsu. Then of course, because they will be rational, we'll be killed hard by the other members of Akatsuki, including their chunin and jonin corps that of course they have.