- last post: 01.01.0001 12:00 AM PDT
actually, it is possible....
the only reason why there were multiple halos is because one halo couldnt cover all of the universe. not at once. now, the universe is pretty much unilimited in how much room there is (yeah, i know, "but that's why all the halos were made!"). however, the flood were an experiment gone wrong (correct me if im wrong), and so they were never an actual race that developed over a long period of time, unlike us as humans. the forerunners could have had other colonies on separate planets far away from the flood. when the halos were activated, there couldnt have been any way for the flood to reach those colonies, seeing as how all sentient life was killed. even if the flood got on a ship, they arent intelligent enough to know to pilot it somewhere, and even if they did the forerunners would know and would perform a full system wipe before activating the halos.
basically, yes it is possible the forerunners are still alive somewhere far away from the halos. and so it is also possible that the forerunners also have a map of where the halos were before including planets around there.... meaning that its possible that the forerunners be introduced in halo 3.
but that's pretty unlikely.