Tittle^^^^
Let us transform our cats in the black version while maintaining their levels, i think ill not be buying a new cat since i just gor mine to lvl 100 -_-
The trick should be that if you transform your cat to shadow version it cost double than transforming a brand new one (if avove 50(?) whatever it gets his first change) and triple if third form, maybe as a bonus, it cost 2.5 if over 100/ultimate.

Still since OOO just wanna get easy money with cheap reskins instead of new content this will never happen...