User blog comment:BackToTheFuturama86/Characters that Peter and Lloyd have Expressed Interest In/@comment-4051680-20140629004014/@comment-5264252-20140629005122

No, Lloyd said he had a demo for Betty White vs Bettie Page. They said they were halfway through the writing process for Freud vs Phil before scrapping it, and Peter's mocking comment of "You know who I've always wanted to see in a battle? Dr. Phil." makes it seem like they won't use them, or at least not Dr. Phil.