I really hope not. Playing both Imad and Shadab in the same team would weaken the batting quite a lot. Therefore, it would make sense to let Hafeez, Haris and Malik/Fakhar share the fifth bowler's duties instead.
Never gonna happen. They will get destroyed. Teams are looking to score big so they will plunder weak bowling.
It will be the CT formula, where both shadab n Imad played.
Hafeez needs to be ready to bowl a bit though, u need 6 options