Topic: Sonic Underground Coming to Disney XD!!!!

Bubba, they are not continuing the series. Sorry, but they will only be showing reruns.

They never finished a lot of the Sonic shows, and likely never will.

They finished sonic. X and the more dark sonic one I forgot the name of it though

I could've sworn they didn't finish Sonic X, but maybe that's because I stopped watching after Season 2, which I was hoping would be the end. And the "Darker" Sonic you're thinking of was Sonic the Hedgehog: The Animated Series, and it was turned into the comic series, which still doesn't count as finishing the series.