The 48th Pacific Northwest Ballet season has been announced by Artistic Director Peter Boal. Highlights include George Balanchine’s dazzling Jewels, and Crystal Pite’s remarkable Emergence; world premieres by Jessica Lang and Alejandro Cerrudo; the return of the popular story ballets Roméo et Juliette and Coppélia; and the PNB premieres of works by Penny Saunders, Twyla Tharp,…