When you take a look at past halo games they always offer up a mixture of both new maps and old favorites however halo 4 seems to be new maps and thats it aside from Ragnarok. I understand that this is the start of a new trilogy with new creators but that doesnt mean they should discard the great stuff that has already been made. Instead they should you that great stuff and implement it into there current game.
Many maps have been remade more that once and by playing them you can understand why and thats why i have no problem seeing maps like Lockout for a third time or Blood Gulch for a fourth time. Some maps have been remade once and if others have been remade more than once then whats stopping them from making it again.
Finally there are those maps from the past that have never actually been remade before. We have seen some forge created map remakes like Sanctuary/Asylum and Ascension/Pinncale but there are still those that havnt been remade through that either. These maps are…
-Rat Race
-Boarding Action
-Chiron TL34
-Burial Mounds
-Colossus
-Waterworks
-Foundation
-Containment
-Turf
-Backwash
-Gemini
-Relic
-Terminal
and of course almost all the Halo/Halo2 PC maps that many have never played on or even seen before.
I believe that a good amount of the maps from past halo games would play really well in halo 4. Terminal would bring back that unique map design involving the runaway train and hectic BTB games, Relic and Containment could offer up some insane BTB games as well.