After agreeing to not participate in the competition Europa, then the one who will replace Juventus position maybe it is Fiorentina, because in the previous standings Serie A they position right under Juventus. But currently Fiorentina haven't made any new signings player for next season, although there are many loan players who have returned to fiorentina, but I think they should at least sign some players again.
Juventus is increasingly losing their place in Serie A as the team with the most Serie A trophy winners. Massimiliano Allegri's troops are getting further away from the chance to lift the trophy next season. In fact, several new names such as Paul Pogba, Angel Di Maria, etc. who enter the Juventus squad last season have not been able to help restore Juventus' identity in Serie A, especially