User blog comment:Omega natsu2/Chapter 371: Tartarus Arc, Part 2: Song Of The Heavenly Dragon, Predictions./@comment-7418318-20140212085015/@comment-1359322-20140212111658

I think that's because Kishimoto wants to have the Juubi fully revived, so he decided to have the Gold and Silver brothers, then Kishimoto faces a dilemma who to deliver. The stupid student teacher duo Guy and Lee. -_-