The upcoming season of "Tokyo Ghoul" has been plagued by rumors, which is not surprising considering its massive fan base and story. The most recent rumor has to do with its protagonist. It has been said that Ken Kaneki will be replaced by a new leading man named Haise Sasaki.

However, some fans are under the impression that the two are one and the same. There is a belief that Haise Sasaki might just be Ken Kaneki's avatar. Another rumor states that Kaneki might suffer from memory loss or amnesia, which will lead to him assuming a different identity--Sasaki. In this version, Sasaki, or Kaneki, will reportedly be a ghoul investigator. 

The assumption that Kaneki and Sasaki are actually the same person mostly stems from the two characters' similarities appearance-wise. They sport the same style and color of hair. Of course, that merely is not enough to prove this fan theory.

Another speculation has to do with an entirely different character taking the center stage. Some reports have said that Touki Kirishima might become the protagonist when season 3 airs. 

As for the story, fans were outraged when the first two seasons drifted away from the manga's plot. This resulted in an uproar and an online petition being made to transfer the rights of the anime from Studio Pierrot to Madhouse Entertainment. And for some reason, a rumor started circulating that Madhouse had indeed taken over the project, but this does not have a solid basis.

Season 3 will reportedly take inspiration from most of the manga's arcs but will not entirely stay within its plot. It remains to be seen if fans will continue to support such a move.

These are all just rumors though, and nothing has been officially confirmed by any party. Thus, it would be wise for fans to take this news with a grain of salt for now.

"Tokyo Ghoul" season 3 has yet to receive a release date, but it is widely believed that it will premiere in the summer.