Board Thread:Theories and Speculation/@comment-31186252-20170209020743/@comment-1872728-20170210110218

@Lux17 They could be brought back, but they wouldn't be transmigrants anymore. These transmigrants have two spirits, one of them is Indra/Asura and the other is their own. When Madara/Hashirama died, the Indra/Asura spirit left and went to Sasuke/Naruto, so when they were brought back they only had their own spirit.