Is there an aristocats 2?
No, but at one time there were plans for one. The Aristocats II was supposed to be a direct-to-video sequel. It was scheduled to be released in 2007, but the production was canceled in early 2006 after Disney acquired Pixar and canceled all projects not related to a consumer product line.
No. The final productions in which Disney had an active role were the animated feature, The Jungle Book and the live-action musical comedy The Happiests Millionaire both released in 1967 (but were in production prior to Walt Disney's death on December 15, 1966). He did not have an active role in the production of the Aristocats which was released in 1970.