Eastman refers to Shredder as "Karai's father" in Ult. collection 5

[ToTheNines]

Originally Posted by Andrew NDB

What about the rainbow bandannas? Or by that point were they just like, "We already f***ed up on Karai, so just f*** it now" ?

They probably just started doing whatever once they realized it would not be in the Mirage universe. On that matter specifically, I would imagine the second Nickelodeon heard “not Mirage” they told them to shove those red masks up their asses.

It's kind of a mixed bag. On the one hand, I'm glad Mirage retroactively dodged what in many ways was a Future Story with a ton of Nickelodeon notes. On the other, it might have given a ton more significance to the Next Generation Turtles they started up. If The Last Ronin II and III and so on were literally giving us Mirage: The Next Generation and not Random Spinoff TMNT Universe #23023: The Next Generation.

Good points.