Kabuto's Trump card

[DARKERthanBLACK]

hmmmmmmm

 

[Venus]

He opens the coffin with goku in it

 

[MasterofSenjutsu]

Yes he was sealed by the 3rd Hokage in the fight with both first and secong hokages and orochimaru. At least he was going to summon him but Hiruzen stopped it.

And about who can be the one inside that coffin.... we can't know that untill it is revealed..

Not that its relevant biut the 4th Hokage sealed himself with the Reaper Death Seal when he sealed the Nine-Tails into Naruto

 

[Sanket Pati]

I think it should be one of the SONS of the sage of six paths..!!!!!