In a thread on white Hampden torpedo-bombers, Jan Polc of AZ makes it clear that work is being done on this subject, and that this is so far advanced that the torpedo-bomber conversion will be a "cut here and add" conversion.
We can of course dream of larger things, but he hasn't said that it will be any more than the conversion parts, or that it will be a 1/72 tooling for AZ, or any other scale for any other company, or given any idea of possible dates.