Sasuke will talk to the kages.
Minato/Hiruzen will play a big part in the story telling
Sasuke will ask Hiruzen what went on as to why the coup de tat had to be stopped and why itachi assinated the clan.
Minato mentions the attack 16/17 years ago was orchestrated by a masked man. Sasuke will now know it was obito and he'll want to kill him because if that event of the nine tails fox were to not happen, he would still have his family alive and well.
Minato then asks about naruto.
Sasuke says he's alive and that he could sense his chakra.
Minato will probably say that's all i need to know.
He tells every everyone to put their hands on his shoulders/come in contact with him.
(Minato integrated his ftg in the seal of the ninetail fox.)
They arrived in the battlefield with everyone in shock to see them.