The team wins.
Itachi's 3T version already got countered and taken down by early Shippuden base Naruto and Kakashi.
The only real problems (once again) would be Amaterasu and Susanoo, but since Kakashi has intel on Amaterasu, he can share it with Chiyo and have her guard everyone with her puppets (similar to what Gaara did with sand during the kage summit), effectively countering it.
Susanoo would only prolong the battle, but tbh i don't see Itachi making it that far against this many opponents, he'd exhaust himself more rapidly than he did with Sasuke and leave too many oppenings.