Apologies if my title is in caps lock
So i gathered everything we know right now about halo 4 and put them together:
-Unnamed grenade launcher (halo 4 trailer)
-Truster packs (Halo 4 trailer). do note that it isn’t a jetpack, but rather a built-in system to navigate in zero-g (it is mentioned in the books, so yes, it is canon and will probably not make an appearance in multiplayer).
-The warthog is confirmed (Forza 4)
-It will use an updated version of the halo reach engine (keep in mind that graphics =/= engine. Halo reach used an updated version of the H3 engine, H3 and updated of H2 and so on.)
-The forerunner book trilogy will have clues for H4
speculation: if you read it, the timeless one (referred as the last precursor) may become an antagonist
/speculation
-the dictat will be mentioned/make an appearance in H4. (CEA terminals)
That’s all i have for now, have fun