Come back for what? so he can get fuked up by the big guns in the series? i think its best hes gone so one of these op bastards don't make a boy toy outta him.
what a twist if one was sasukes parents.srsly why are u guys still thinking they will use last zetsu as substitute body for another Edo? they will need DNA from Itachi since his soul wasn't in the RDS... so they might as well use Itachi original body if they're gonna get his DNA lol...