WE DON'T KNOW AHSOKA TANO'S ULTIMATE FATE. PLEASE STOP ASKING.
As The Clone Wars is an ongoing TV series, and there are no appearances or mentions of Ahsoka Tano in any post-Clone Wars sources, we don't know what eventually happens to her. Until some official details are released, we can't say if she survives the Clone Wars and Order 66 or not. Also, since this article talk page is meant for discussing the Wookieepedia article on Ahsoka Tano, and not the character herself, discussing her possible or probable fates on this page is off-topic.
Anyone who posts a question asking about her fate will be blocked.