Halo 4???

[Echo]

in all honestly, lets say they make another halo what would the storyline be? The most likely answer MC finding his way home to Earth. That is just milking the cow then because the story would just seem boring to me. im pretty sure a book is being written regarding MCs fight to get back to earth, if they want to expand the game make an MMO however I just think the entire series has been told. From Reach to the stopping of grave mind.

Or, to a much more different approach, they could go COD on the new game and show different aspects of different wars.
Like maybe say HALO 3 was the World at War, and then HALO 4 could go to a different war and different time period, like modern warfare.