The new season should be more challenging because all the teams are trying to be stronger. If Juventus still wants to compete for the title and stay in UCL zone, they must be stronger and perform more consistently in the next season. By the way, I don't see something special with Roma, this team is almost similar with Juventus. The problem of these teams that they couldn't play consistently in the whole season. If there is no change on these teams, I doubt if these teams can surprise us in the next season.
If in fact things with Juve have to be better for this session because I personally have seen that the teams are getting in very good shape, reinforcing themselves above all, but Juve have history and with the money that was not much that they won in the World Cup they have to make very good purchases, AC Milan have already taken Modric, he is a great player, he will give another vision to football in the team, Juve must look for new blood to refresh.
We can see that all teams are improving for next season, but no one knows what will happen. It could be better or worse. Players come and go, which can have a significant impact on a team's performance.
Juventus and AC Milan are two teams looking to achieve their best form to win titles, but that won't be easy, and the changes made are still open to change.
Signing new players does not guarantee a team that will be doing well or winning trophies the players need to be improved first before the teams can think of getting better, next season is no longer far and Juventus and AC Milan needs to do everything possible to achieve a good result next season because last season they tried but couldn't as achieve something good as expected the changes they are making now should bring a positive result to them next season if not it's still going to affect their performance and that won't be a very good thing for them based on the amount they are spending in the market.