The first to fourth generations have all been resurrected, but they were not resurrected by Kabuto.
But after Orochimaru was resurrected, he and Sasuke came to Nanga Shrine.
By unblocking the corpse ghost seal, the souls of the first to fourth generations and Orochimaru's hands were recovered.
Then Orochimaru used the Earth Reincarnation to resurrect the four Hokages.
Currently, the Eagle Group and Orochimaru and the other three Hokages are listening to the first generation narrate what happened between him and Madara in the past
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Purely made by hand, I hope you will adopt it (=?ω?)?