She has to be removed from Anakin's life somehow by the end of the series. What do you all think heroic self sacrifice, expelled from the Jedi order, turn to the darkside, or order 66. Personally I hope she survives to confront Darth Vader at some point. Although I don't think that would end well for Ahsoka either.
Maybe she is discovered to be a Clone from another part of the Universe and goes off (into the Sunset) to spread the word of 'Robotic Jedi-ism' eace:
The cartoon is fucked... She is killed by the clones when they are reprogrammed.. order 66//.. they shoot her in the back ..