I'd say that cinemas are more in danger to lose the fight in comparison to theaters, as people still want to visit there opera, ballet and such. But cinemas might become obsolete, as you mentioned, people can stream films whenever they want and don't need to follow a given time schedule given by the cinema. This is a major concern about cinemas, at least for me. At home I can stream whenever I got the time to do so, I still do enjoy a movie at a cinema, but it's more for the nostalgia and to be somewhere else than home, e.g. a date night or so. But I could recognize even cities like berlin have trouble keeping cinemas open as the amount of customers drops.