Think about this: Chief is floating around on half of an abandoned ship in a cryo-tube. They think he is dead. The war is over, and there is no more enemies to fight. So what could they even do to create HALO 4 based on the events that occured in the previous games? It wouldn't work. I guess it is possible that there are more rings.. Maybe that ship might land deeper into the universe on another HALO, much like HALO: Combat Evolved started out. Maybe a prequel? But then again thats where HALO...
Think about this: Chief is floating around on half of an abandoned ship in a cryo-tube. They think he is dead. The war is over, and there is no more enemies to fight. So what could they even do to create HALO 4 based on the events that occured in the previous games? It wouldn't work. I guess it is possible that there are more rings.. Maybe that ship might land deeper into the universe on another HALO, much like HALO: Combat Evolved started out. Maybe a prequel? But then again thats where HALO...