Juventus will outperform everyone this year, I'm not saying they can win the Scudetto but I'm sure they can get in the middle of the best teams for the top 3 places, and certainly have a good run in the Champions League, Inter can also definitely take back the Scudetto, I see it as bad for Napoli instead.
In reality is that Juve is not a favorite to win the scudetto this season. The better they to get rid of their useless striker, Vlahovic, then bring Kolo Muani as a permanent transfer to their line up. I think that will work to push them as one of contender for the scudetto this season or at least to finish at the top 3.
I ain't see it top three will happen until they can finish Muani's transfer.

I don't think Juventus is the favorite right now either. I think Inter has a much stronger squad, and of course, things will be different when the season starts, but right now, I don't see anything that would make me think Juventus will win the title. It's very difficult to pick a favorite in this league anyway; the teams are quite similar in strength, and each team has a chance to win the title.
I don't think we'll see a clear winner in the title race until the final weeks of the season