Nearly a year after returning to Walt Disney as chief executive, Bob Iger laid out his vision of the company’s future, putting streaming and live entertainment at the center, fed by a studio business that he plans to personally help reinvent.

Nearly a year after returning to Walt Disney as chief executive, Bob Iger laid out his vision of the company’s future, putting streaming and live entertainment at the center, fed by a studio business that he plans to personally help reinvent.