Lock if already posted.
But yeah, Sledgehammer the team that had a small hand in working on MW3 with infinity ward has officially joined the call of duty team. Now there will be 3 year development cycles for cod titles, Maybe this will make every game feel more freash?
Personally I don't know how much influence they had over MW3 but that was one of my fav cod titles so I'm excited about it.
A link that talks about it:
http://imageshack.com/a/img801/6426/f7pc.gif
^Yes that's me ripping it up in the GIF. :)