AFAIK he is still doing Trek but not on screen at the moment.
I am now half way through the book and will reserve full judgement. However, I agree that DB has written an incredibly honest book. He praises CA for some things and clobbers him for others.
I support the comments of The Actuator. It is also very readible and would be useful for the travelling public who want to know why things sometimes happen the way they do in the airline world. It has been written for the average citizen. That said, he has written specifically for the South African market as it contains many references and words that would be lost on others.