Gaming blog Destructoid received what is believed to be marketing survey hinting at Activision's possible upcoming online plans for the Call of Duty series.
The survey focuses mainly on the online space; specifically a new service where players would pay a monthly fee (much like a MMO game) that will "enhance the multiplayer experience and provide exclusive access to a group of gameplay enhancements."
Other features mentioned are access to early betas and expansions, character skins, enhanced stat-tracking, game modes, and "support for competitive play."
Keep in mind none of this information is even remotely official and may in fact never come to fruition, so don't get angry just yet.