Shame, I would've loved a batshit insane third movie full of OT mutants since this is the only live action interpretation that could've let it happen. While both movies are flaws from their changes to the mythos and some design choices overall they aren't that bad and have plenty of elements that I liked.
What this means though is no more movies for who knows how long, less incentive for Nick to keep the CG show going and all the dominos keep falling for things to be just like when 4K!ds show ended and stay like that for a decade or more. By the time Wave 4 of TMNT movies/show comes around I'll likely have a kid who is old enough to watch
.