Actually, I shall also still use Dexter's Odyssey as an alternate (and even an alternative) title for Dexter's Laboratory: Avatar. But I don't think I chose that title simply because of my fondness for James Cameron's Avatar. I think the word "avatar" actually comes from India, not James Cameron's brain or so. After all, the word "avatar" does not just apply to James Cameron's movie or the Nickelodeon show, Avatar: The Last Airbender, but rather, it usually means "the descent to earth of a Hindu detity, for example, Vishnu, in human or animal form".
But, I could still use both titles (Dexter's Odyssey and/or Dexter's Laboratory: Avatar) anytime, if I feel like it, and even though the latter doesn't make sense to some of you.