Well let's think
Kakashi - unlikely, besides I don't care about him and overpowered kamui
Minato - possible, but then our main characters: Sasuke and Naruto would be pathetic jokes being saved again

Naruto and Sasuke uses their full power currenlty - HELL YEAH, About time.
Other - ass pulls
In short answer to you: It is time For Sasuke to unleash Final Sussano EMS version(same as against Zetsu) and Naruto to unleash Bijuu mode(Kurama should be done gathering chakra already)
Bijuu mode && Final Sussano FTW.
EDIT: This will not only hype Obito as Juubi Jinchurki but show us how full power currently Sasuke and Naruto could fight or compare to Obito Juubi Jinchurki, same as comparing Naruto to Sasuke finally, but Kishi may save it for their final fight
In my opinion it would like that:
1) Bijuu mode && Final Sussano
2) Full Bijuu mode(Minato gives Naruto kurama chakra back) && Perfect Sussano(Obito insults Itachi and then Sasuke power up)
3) Obito proves to be more powerfull and get rid of Edo hokages
4) Gokage and Orochimaru arrives but can't do shit to Obito
5) Juubi reach final from within Obito or Gyuuki gives some chakra to Naruto(Killer bee may survive or not), the SOSP will appear in Naruto's mind or free itself from Obito or fight from Inside to make control over Juubi much harder for Obito
6) SOSP Solos Obito through Naruto body or other way
Forgot about Madara
My prediction how NEXT CHAPTER WOULD LOOK LIKE:
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