Inter Milan and AC Milan are lucky as they have qualified for the Champions League. With Inter Milan's erratic performance at the start of the season, I thought they would not be in the top four of the table. However, Inter Milan and AC Milan have played quite well in the last few matches. Unlucky Juventus team, they could not qualify for the Champions League due to losing 10 points. But I don't think any Juventus player will leave the team because of not being able to play in the Champions League. Besides, Juventus have enough money. Even if a player leaves the team, Juventus can take qualified replacements.
Some of the players who are rumored to be leaving Juventus after this season are over are due to the expiration of their contracts, and don't think that Juventus will be destroyed next season because they don't play in the champions league because after all Juve is still a big club.
Most likely Juventus will only play in the Conference League, or Europa League if the two clubs above them or at least one of AS Roma or Atlanta loses in the last match and Juventus can get full points against Udinese, but that looks impossible because Atlanta will face Monza as the home team and also AS Roma will face Spezia as well as a home match, so the possibility of seeing both teams lose is difficult to materialize so Juventus will have to settle for the conference league.
It's fair to say that Juventus haven't had much success in Europe in a long time. I can't remember the last time they did well in the Champions League. This season in the Europa League they also failed to perform well. Hopefully in the Conference League next year they will be able to contend for a high result.