Halo 4 might end up being a bit different than expected after Microsoft hired some new designers for 343 Studios to work on the project. Some of the new designers have key experience regarding the Killzone and Metroid Prime series.
Two people they hired were the Lead Designer who was also the Lead Level Designer for Killzone 3 and the Senior Designer from Retro Studios who worked on Metroid Prime 2 and 3 along with Donkey Kong Country Returns. Another person was hired to bring in the "Nintendo" philosophy in terms of game innovation and design.
http://vicariousgames.blogspot.com/2...orking-on.html