I understand your enthusiasm about Toni Kroos joining Juventus. He may alter Juve's locker room with his Real Madrid winning mindset and leadership. I'm sceptical of this rumour. I've heard Real Madrid wants to keep Kroos, possibly extend his contract. You must also consider timing—we're far from the summer transfer window. Juventus must preserve their squad dynamics. Their team is good, so adding a player may not be the greatest decision. Also, there are rumours about a Juventus coaching change. Hopefully it's only a rumour, but football is full of surprises, right?
I believe that if Toni Kroos moves to Juventus it will just be a rumor.
Now we are trying to tell the truth that at Real Madrid he is a key player who can help the club to win the title in the Champions League and selling this player a big mistake for Real Madrid because he still worth keeping so for me it will only be a hope for If Juventus is old and has experienced a slight decline in performance, Real Madrid will definitely sell him.
I think without chasing Toni Kroos, Juventus already very good and only needs a reliable striker for next season.
Regarding rumors about Allegri being replaced by a new coach, I think it's just a rumor because we all know that Allegri the one who provides assistance and at the same time plays an important role for Juventus after being successful in continuing to chase the points that Inter has even though they failed, but at least Allegri very important for the future Juventus and firing Allegri will make Juventus future performance worse if they cannot replace with the right coach.
I would be very disappointed Juventus management insisted on replacing Allegri with a new coach.