After the Crimson, Majestic, and Castle map packs come out, I think it would be pretty cool if 343i would release 2 more.
Nostalgia Map Pack
>Comes with 3 oldie but goodie maps
and
_________ Map Pack
>Comes with 3 Awesome Forge maps…with on the size of Forge World
Each coming with 9 Achievements…and assuming that Majestic and Castle are coming with 9 achievements that would make Halo 4 the Halo game with the most achievements ever. A grand total of 94 achievements.