Plans are a funny thing in the streaming business. Obscure shows like Squid Game can find their audience, become cultural juggernauts, and then get additional seasons. Others, like Warrior Nun, can also find rabid fans but just not enough of them to stay alive. As the streaming landscape expands, the possibility of any show surviving starts to feel like Squid Game itself—and the thrum of “red light,” “green light” leaves everyone on their toes.