Back when the TV season took place between autumn and spring, the summer months were awash in reruns. Streaming upended all of that for good, and here we are with new shows and new seasons premiering year-round. With that in mind, here’s a look at what’s to come. Note: Many upcoming titles have yet to announce their premiere dates, so this list (presented in chronological order) is drawn from the limited number of shows on the schedule so far. “Stranger Things” (May 27 on Netflix): The series is back for Season 4, which is being parceled out in two installments (with the second half coming Jul…