Could it be? Dan Barker is going to be debating the historicity of Jesus with ancient historian and NT scholar Dr Chris Forbes at Macquarie University? Why the question marks? Because the topic is yet to be announced, but I have quite the suspicion that this is the topic. Barker has promoted the pseudo-historical theory in his book and debates, and Chris Forbes has had a go at the theory as promoted in the infamous Zeitgeist.
Dr Chris Forbes is a Senior Lecturer in Ancient History, and Deputy Chairman of the Society for the Study of Early Christianity. His fields of research and teaching focus on New Testament history, Alexander the Great and Hellenistic history, Graeco-Roman History of Ideas and the intersection of early Christianity and Graeco-Roman culture. His current research is in the field of the relationship between religion and philosophy in Graeco-Roman thought. He gained his BA (Hons I) Dip.Ed. in Ancient History at Macquarie in 1978, and his PhD in Ancient History in 1987. He has taught at Macquarie in various positions since 1985, full time since 1987, and was appointed Senior Lecturer in 2001. He is a member of the Society for Biblical Literature and the Tyndale Fellowship.[source]Dan Barker is a former Christian evangelist now turned atheist. For his profile see here.