Allegri is definitely looking at 4321. Pereyra did well at AMR/RWF position a couple of times during the pre-season and Coman is looking very impressive too.
Giovinco is more useful in 4321 than in 352 that's for sure. As for Tevez not much changes either way tbh. Llorente and Morata can definitely play CF in the 4321.
As things stand right now:
Buffon/Storari
Licht/Caceres - Barzagli/Bonucci - Chiellini/Ogbonna - Evra/Asamoah
Vidal/Romulo - Pirlo/Marchisio - Pogba/Asamoah
Pereyra/Coman - Tevez/Giovinco
Llorente/Morata
Bench: Pepe, Marrone, Rubinho.
As for now it seems Evra is ahead of Asa as LB, Pereyra is ahead of Coman and Llorente is ahead of Morata. Things could change, hard to predict right now.
No need to post the 352, we all perfectly know it