If this is the lineup, then return is definitely in air quotes. It's the same kind of lineup they've been running on Saturday nights since forever, they've just put in two new shows. That said, I've watched just about everything else they've ever run there (Eureka 7 and Morbito did nothing for me), so I'll definitely give these new shows a shot. As far as the Toonami branding, I am glad to see it back.
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They're not "new" per se. The made them years ago, but never aired them. They've been floating around on the internet for some time, and I think they're included on the DVD sets, but I'm not sure about that.