Andy is going through some kind of grieving process right now and that takes time. Let's hope that he can come to terms with what has happened sooner rather than later.
I want to add my voice and say I miss Andy too. Charlie Gillet and Lucy Duran are both excellent broadcasters, but really very "Radio 3" and, dare I say it, middle class. Andy injects a very welcome note of life into the refined R3 ambience.
I suppose it is a blessing that there doesn't seem to have been a full scale tabloid feeding frenzy, (later...oh, just got the link to Daily Mail interview with his mother, via the Yahoo group) It would be nice if there was some way well wishers could express some support and hope for his return, if not directly to him, at least to the BBC.