Danzo is...

• Is protecting Konoha by not allowing Naruto to be brought back, to keep the nine tails from Akatsuki preventing them from getting all the tailed beasts.

• Is in on it with Akatsuki and is preventing Naruto from coming to help Akatsuki invade Konoha.

• Is in it for himself, keeping Naruto out leaves Akatsuki to destroy Konoha and let Danzo rebuild it in his image.

• Other: