We all saw How did Madara get the Rinnegan and powers of hogoromo. There was a logic in it i.e. When you combine the powers of senju and uchiha you get powers of hogoromo...it means you get closer to him...but the return of Kaguya leaves a lot of questions. She should not be alive...to revive her the basic needs are powers of Hogoromo and his brother i.e. powers of (uchiha, senju), and hyuga!
But Madara never received or took any powers of hyuga...so Kaguya shouldn't have been revived in the first place.
but since she is real now...Madara's return is almost confirmed now, because Naruto and Sasuke can't defeat Kaguya without all the hokage's and Madara...the only thing that can stop this from happening is Kishi introducing us with Haromo!
But Madara never received or took any powers of hyuga...so Kaguya shouldn't have been revived in the first place.
but since she is real now...Madara's return is almost confirmed now, because Naruto and Sasuke can't defeat Kaguya without all the hokage's and Madara...the only thing that can stop this from happening is Kishi introducing us with Haromo!