It has also been confirmed that all the original voice actors will reprise their roles.
Yeah, the new fad it seems is all nostalgia going from Toonami's return, to Samurai Jack, to Powerpuff Girls (though it's horrible), to Duck Tales reboot, to Invader Zim, to Hey Arnold's new movie, and a Rocko Modern's Life special. I think we might be seeing a lot more of this in the future. Now if they turn into anything good is an entirely different story.
Was on Nickelodeon in 2001 where it was cancelled in 2006. Gained a huge cult following for not only the premise or the characters, but also the artistic style and just the randomness of it. Was intended for children around the 8 to 12 area, but the Gothic style and darkness of the show was more for teens in their 14 to 18 range. One episode pretty much showed organ harvesting of the school children. Thus why Nickelodeon cancelled it, not because a lack of popularity.