I probably am the only one here who bothered to sign it, but I did my my name on the petition to save the Clone Wars.

http://www.causes.com/actions/1733395-allow-star-wars-the-clone-wars-to-remain-on-the-air-till-the-end

I doubt the Clone Wars protest groups are big enough or cohesive enough to change Disney's/LFL's mind, sadly.

Another article with a little more info on the Filoni interview:

http://screencrush.com/star-wars-the-clone-wars-dave-filoni-future/

And an interview from a couple of the guys from Lucas Animation and how in the dark they have been about TCW ending or how the "bonus material" will be released. I'm starting to think we may get more than two arcs at least.

http://emertainmentmonthly.com/2013/04/05/interview-with-the-clone-wars-supervising-animation-editor-jason-tucker-and-assistant-animation-editor-nate-cormier/