Yeah -- the last new episodes aired on Nickelodeon in November, though the actual series finale had already aired two months before on Nicktoons. There were a couple of storylines that only ran on Nicktoons, I'm guessing because they were a little too intense/violent for Nickelodeon. One was a time-travel 4-parter that pitted the Turtles against Dracula, werewolves, Frankenstein's Monster, and a mummy, and the other -- the final 3-parter, aired as a movie -- was a post-apocalyptic story with Raph as a cross between Mad Max and Old Man Logan.
Those new designs are... very revisionist. They will take some getting used to. And I've never heard of any of the voice cast.
Several things suggest this is going to be a younger-skewing version. The bright, cartoony designs suggest that, as does the young-looking April. Also, Raph's sais have been replaced with tonfa, and both the tonfa and Leo's sword (only one) are glowing, suggesting they're going for a more fanciful energy-weapon approach.
Nice to finally get an African-American version of April. The character in the original black-and-white comics
was drawn ambiguously, and apparently Kevin Eastman modeled her on his African-American girlfriend/future wife, though Peter Laird thinks she's supposed to be white. Pretty weird that the two creators/collaborators on the comic couldn't agree on that. (Baxter Stockman was unambiguously black in the original comics, but the '80s cartoon whitewashed him as well as introducing the redheaded version of April. Later adaptations have restored Stockman's original ethnicity, but April has been a redhead ever since.)
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