Not listing anime I wish were still running since the original run as dragging an anime out to long is not a good thing but really wish the following series had another season or 2.
Railgun (is way better then Index sadly its was a one novel side story to the main index story so don't expect any new seasons
)
Lucky Star(not going to happen since they already graduated just wish the initial run had been longer)
Nichijou( One of the funniest anime I've had the pleasure of watching the ending leaves plenty of room for more seasons although sadly money talks and series wasn't very profitable in japan so not likely to happen)
Yuri Yuri - see above
Mitsudomoe - see above
Soul Eater - The manga is still running I'm not sure if they deviated to much from the manga to salvage but there still room for more seasons)
Air Gear - Manga is still running and they abruptly ended the first anime.
Haibane Renmai - One of my favorite series incredible slice of life anime with a very deep characters and has a very emotional ending that defiantly satisfied me but so much went unanswered and the ending pretty much set it up for a sequel.
Kino no Tabi: The Beautiful World - Like one piece this anime could go on forever due the nature of it having a group or people(One person and a bike in this case) exploring the world and they can do so much with each different town that Kino visits and the questions they touch upon.
The Telepathy Girl Ran
Kannagi
Online 
Offline 
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