I don't think Nike has any say in whether the club decides to change its badge. That is entirely a club decsion. Juve has changed the badge three times since 1990, so it would not be that unusual if they did it again. In the early 90's, the shield was blue with Bull image. Then the bull was replaced by a zebra image, then the shield was changed to yellow (or gold) with the bull that we have presently.
That badge shown on those alleged new shirts is pure crap, though.