You've got to be kitten me (One Piece)

The whitebeard was in the new world leaving an island after they were done restocking their supplies when suddenly a purple smoke was heading there way and when the purple smoke was gone past the ship some of the whitebeard pirates was gone including whitebeard himself, the other whitebeard pirates panicked while the one's that was gone suddenly in a cats body and a girl with his little brother took care of them

Will they return back into there ship and be human again
will this possibly make the story different and no one dies in whitebeard ship including himself
wanna know then read and found out out or should i say dont enjoy the story cause i don't know if this story will turn out great and im not saying im writing this story is bad im just saying you might not enjoy it thats all