I just got an email back from mark he said he would be willing to do an interview but whether it will be video or not we don't know he was saying he would prefer a text one. either way what questions should we ask?
I'm probably the wrong person to ask, but I'd probably ask him questions like:
What are your thoughts on each of the games since Daggerfall? How do you feel about the direction the series has gone? What was your original vision for Daggerfall? Has that vision changed? What do you think of later alterations to the lore of the Iliac Bay? How did Bethesda create lore for Daggerfall? What did you contribute, and how were you involved in creating lore? What would you change from Daggerfall? Do you think Bethesda should return to High Rock and/or Hammerfell? What would you like to see?
Seriously, though, I'd get some hardcoe Daggerfall players to draw up the questions. I've never played it extensively.