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NECA will take six months to tease Ultimate Nada after Mattel reveals their 6 inch rendition, then wait several months after they teased it to release and complete some TMNT waves, and then they will start revealing promotional pics of Ultimate Nada before they can announce the preorder window.
Having said that, Mattel will only do Roddy Piper and move on, but NECA may also release figures of other characters from the movie.