Ok I along time ago watched this vid (Feb 12, 2011 to be exact)
link (Skip to 0:40 to understand)
Is it possible halo 4 is finished already and their only making us wait for info so long because they want halo 5 to be just as epic or more so and are to busy with it?
Whats your theory
doubt it lol. but i bet they are already laying the groundwork for Halo 5 but it must be very very little.
This is really old 
But I am not going to complain,
I don’t think they are done with halo 4 yet, I think that “halo 5” thing was just a placeholder for when 343 begins to work on Halo 5. Also when I saw this that began my hope for a halo 4, and look what I got coming this fall 
I did somthing stupid in this little reply when It was ment to be a edit instead
sorry for spam
I think they just have the logo done. Their entire team is currently committed to Halo 4. So I doubt they’re done.