Well this is a surprise! I thought they were really clear on wanting to end the story at 3. Not sure what to think of the teaser, it was a bit weird and didn't really have that Halo feel to it. (I know it's a different developer but still) Anyway, this will be very cool. :)
Pretty much, the truce was officially recognized at the end of halo 3 (without masterchief) but the actual truce began earlier than that, and is more easily understandable as a truce with the elites, as the conflicts with the brutes never ended even after halo 3 when the covenant civil war was still taking place for some…