Well, which anime or manga would you like to see revived and why and maybe how? Anime Elvenlied - Good story and I hate open endings like this one. I would like to see more and the things a friend told me form the manga are quite nice and would fit in an anime quite nice. Ranma 1/2 - After seeing the fans begging for more, I joined. The 13th OVA was amazing and too bad it didn't come in English... With a new game teased... is that a sign? I hope so!
The Baccano! Anime - They would have at least told what happened right after the Mafia Fight and the Flying Pussyfoot Massacre. Nope, they just let all those well-developed yet unrelated characters stay unrelated, not bothering to tie them all up in one situation. Darker Than Black: Gemini of the Meteor - I despise cliffhangers. Really. The anime itself might be great, but the ending is very disappointing. EDIT: Didn't quite made it clear in the Baccano part.
Kekkaishi --- it didn't go as far as the manga. I wanna see Yoshimori doing his Musou in anime! And the Gen that was created by Yoshimori! >w</ Eyeshield 21 --- same as above, not ending as far as the manga. I wanna see Shin knocked Clifford out. >Db
Groove Adventure Rave - The anime ended RIGHT at the start of a big event in the manga. Left me feeling pretty unfulfilled.