I don't think you'll ever see that happen. I belive the Whammy is on it's way out. For a few reeasons.
First, the price is way too high for what you get.
Second, anyone with a harmanizor or
pitch shifter with an expresion pedal can do the same thing and it sounds a heck of alot better.
Finally, most multi-effect bords can do what the Whammy does and only cost a few bucks more.
I bought a Whammy hooked it up with my G-3 and realized that my G3 can do all this stuff and I took the Whammy right back!
BUT, if Morley does ever make something like the Whammy thay may want to name it "Ya-Yo Gak".
-Andrew