Orochimaru now has Mokuton since he is in a Zetsu body.
That's not really a prediction .... that's pretty much common knowledge.
Naruto will get the other half of the Kyuubi. Either it will come to him or the chakra will "pull" him to where Sasuke is.
Maybe, but I doubt if anything like that happens that he'll be pulled from the Juudarabito battle too Sasuke, since that would literally leave the others to absolute death. Though in either case I expect it to just go right to Kurama and give him an Naruto some lol power-up.
All of the Hokage will free themselves from Orochimaru's control and help in the war after talking with Sasuke. The Second Hokage will use his S/T jutsu to transport them to the battlefield.
Not too sure about that one.
To literally free themselves from Orochimaru's control they'd all have to do what Madara did to escape the fate of the many other Edo Tensei's summoned by Kabuto Yakushi. An while it may be possible for Tobirama (creator and founder of Edo Tensei), it is questionable for the others.
Of course you also have to take into consideration the fact that Madara was able to pull that off thanks to Kabuto being unable to stop him, where as Orochimaru isn't being distracted or incapacitated and thus would make it near impossible for any of the Hokages to try an break free from his control.
The remaining Zetsu will either be used to revive Izuna or Fugaku, if not then it will be used to give Sasuke the Rinnegan.
The last Zetsu is already gone due to Juugo eating/absorbing it, so if there is to be another "sacrifice" then it'll come from the usage of another's body.
Though ... speaking of "another's body", where the hell is Anko?