I doubt something like this could be implemented by the leap year date. Creating a new creatu takes a lot of time, I'm sure, for the artists, and there's a lot of other projects I'm sure staff is working on. It takes time for things like this to be implemented.
I guess for those who want to ask questions about something like this, they'll be out of luck then. Hehe, patience pays off sometimes. Would it be possible for a creatu to not be affected by a Rray? Or to have it so it can only be zapped to a baby stage?