'Mission: Impossible - The Final Reckoning' supposedly concludes the franchise. But is it really the end?

Tom Cruise as Ethan Hunt in "Mission: Impossible - The Final Reckoning." Skydance/Paramount Pictures "Mission: Impossible - The Final Reckoning" sees Tom Cruise's hero fight an evil AI known as the Entity. The story is packed with intense action sequences and leaves the door open for more…