In Boruto: Naruto Next Generations Where Is Sasuke Uchiha?.
Everyone Asking Same Question..
Lets Go Back In Time
Two years after saving Konoha from a meteorite, Sasuke Uchiha travelled alongside his now pregnant wife Sakura, who refused to leave his side. On the journey, Karin helped deliver their child Sarada Uchiha at one of Orochimaru’s hideouts. Afterwards, Sasuke Uchiha raised his daughter (Sarada Uchiha) for some time, but left Konoha early in her childhood, leaving Sarada with few memories of him.
Years later at the time Naruto Uzumaki became Hokage, Sasuke Uchiha was investigating Kaguya Ōtsutsuki within her sand dimension. During his investigation, Sasuke Uchiha comes to suspect that Kaguya Ōtsutsuki created the White Zetsu Army in order to face some greater threat. He returns to Konoha, where he tells his hypothesis to his wife and the five kage at the summit being held. Not wishing to cause a panic, the all five Kage agree to keep this to themselves for the time being. Wanting to safeguard the future of his daughter and the new generation, Sasuke Uchiha continues his wanderings as he tries to find more information, using his Rinnegan to inspect in other dimensions.
I think Right Now Sasuke In other dimensions to find out Why Kaguya Ōtsutsuki created the White Zetsu Army. He Will Be Come When Chūnin Exams Start In Boruto: Naruto Next Generations.