User blog comment:Stabber ApSig/Will there be Prometheans??/@comment-16219425-20121115132559/@comment-5746209-20121121015345

I agree with you. Prometheans will probably appear much like the aliens in the previous seasons, but not the Didact. Although not mentioned that often, RvB is considered in the same universe as the Halo franchise, the best examples are the U.N.S.C. and in Recollections, where aliens and humans are working togeather, which takes place after Halo 3.

Also, if you seen the easter eggs in Halo 4, that could be up for debate.