I'd like to see a .327 Mag made on a K-frame with a 6" Model 19/66 style barrel or even an 8-3/8" Model 53 style barrel. It would be a really nice all around gun, especially for anyone who wants to shoot varmints and small game, and is economical for plinking. The mild recoil certainly does not justify a heavy underlug barrel. An L-frame would not be a deal breaker for me as long as the barrel was not full underlug.
I also want a J-frame .327 Mag for the wife. I hope S&W listens before I wind up having to buy a Ruger.