My guess if this move is indeed implemented, is that it will be an instant finisher, or do alot of damage and fire the opponent into the air. The move could be done very quick, HAT ON, POT OUT - BOIL FIRE!
I just think that kirbys move is a little weak also. If you look at marios and link they have really cool ones. marios is a huge fire blast, and link slashes his opponet into a billion pieces between two triforce symbols. To get cooked in a pot is just plan weird.