I know I have said this before, but any one of the key scientists at the Discovery Institute would make excellent guests. For example,
Stephen Meyer,
Michael Behe,
J. Scott Turner,
Bill Dembski
James Tour See
https://www.jmtour.com/ (Possibly not a member of the DI, but very much involved in arguing for ID)
Jonathon Wells See https://en.wikipedia.org/wiki/Jonathan_Wells_(intelligent_design_advocate)
Really anyone that the Discovery Institute recommends to cover the science of this issue.
To me, the evidence for Intelligent Design is extremely compelling and it is basically saying that Darwinian Evolution by natural selection cannot work, and above all, cannot explain the origin of life on Earth or elsewhere (if life didn't start here, it has to have started somewhere). Darwin could not know it at the time, but the nature of DNA and genes really precludes evolution in this way.
Now think what this issue means for Skeptiko. It means that all life - including us - could not have got here by random processes. Some entity/entities (spirits if you like) had to have designed the whole biochemical engine that runs on earth! Science has been quietly hiding this bombshell for too long - ever since the Wistar Simposium in 1955:
http://www.creationwiki.org/Wistar_Institute_Symposium_(1966)
The big potential problem is that some of them - Notably James Tour - are fanatical Christians, and you(Alex) may have to negotiate with whoever you get about what is or is not to be discussed, but it would certainly be worth it!
David