I like the idea, but I don't think it would happen. In my opinion, I don't think there is enough market to justify the tooling expense for a high end .22 revolver. I think alot of people that want a single action .22 will go for a Ruger, or a used Colt. In Colt's current marketing and manufacturing philosophy, this revolver would probably be a Custom Shop or very limited edition offering with a corresponding price tag like the Python, etc.
Strictly my opinion though.