Board Thread:Theories and Speculation/@comment-810492-20170517190024/@comment-810492-20170518065517

At the very least, this episode implied that the monster chakra might have something to do with the tailed beasts or at least is somewhere within that ballpark. Boruto asked Shikadai whether he ever heard of chakra manifesting as a monster. It seems like no one had any knowledge of such a phenomenon, but we all know from the older series that the only known case of this is with tailed beast chakra. At this point in time, Boruto was still unaware of Naruto's tailed beast powers.

Oh also, like I said before, Utakata's filler arc is probably another good example of non-canon material making it into an anime episode that's intended to be non-filler and canon. In the manga, during the war, Naruto meets Utakata for the first time and barely speaks to him. But in the anime, Naruto met him awhile ago and became friends with him very quickly. Then later during the war, when he meets Utakata again, they already knew each other and spent some time catching up.

Anyways, I too wouldn't bet on the monster being the zero tails from the movie. That being said, it would be very cool and surprising if it was. It doesn't necessarily have to be the exact one from the movie either. This could be a sort of reboot for the zero tails, a reintroduction of it without it being directly based on the movie version.