Inzaghi is reportedly one of the strongest candidates to become Juventus coach next season. But with what you said above, of course it is no longer possible for Inzaghi to train Juventus. But there are two more candidates who might become Juventus fans, Maurizio Sari (Chelsea) and Sinisa Mihajlovic (Bologna). According to the news I read, there were actually three candidates including Inzaghi. I think Juventus will surprise who will be their coach next season.
You can also remove Sinisa Mihajlovic (Bologna), he did a press interview yesterday saying: "I was on Juventus' radar but 5 years ago, before Allegri"
Guardiola is waited today in Italy for some events, (Milan and Brescia where he played) let's see if something interesting happens.
According to Momblano:
Nedved (now vice-pres, and strongly against Allegri from what we can read) is sure that the next coach will be one of the top4 from Premier League.
Plan A Guardiola, Juventus will wait for him till the final of Champions League.
Plan B Conte, till the end of this week, if Guardiola says no to Juve, Conte will be the next Coach but only till the end of this week.
So basically they are all in on Guardiola, if they get a no during this week they will get Conte, if they get a no after this week they will get a random one.
Edit: this is the men of the moment interview @ 20 MAY 2019, the video is in Italian-English subbed EN
https://www.youtube.com/watch?v=IKA8YpopUWwSpoiler