The problem for Juventus now is very serious, indeed for the Play off this time I still trust Juventus but when saying as a challenger this must be seen from a number of things that happen later because with the case that happened to them now it is not impossible that there will be several players who will leave, especially when they were found guilty and had to be forcibly degraded later.
In conclusion you and everyone will have to wait to see how Juventus will play after the world cup. If indeed Juventus has nothing in their game for the rest of the season, obviously it is due to the effects of the problems they are facing so far, but if it doesn't affect their appearance in matches for the rest of the season, it means that Juventus can manage the problem very well.