How well do Waterhouse and Tom Baker get along? With Elisabeth Sladen and Mary Tamm both sadly gone, this at least now opens up the possibility of some Four/Adric audio adventures between The Keeper of Traken and Logopolis. Could even throw in John Leeson as K-9 Mark III before Four gives him to Sarah.
I'm not trying to be funny but I wonder if Tom Baker's ex-wife would consider returning as Romana Two? Do they get along?