Call of Duty Elite-style services will become "a necessity" for mainstream games within the next three to five years, Activision has claimed.

The revelation of Call of Duty: Elite in May this year ended months of speculation about Activision's plans for a subscription-based service.

"We believe that a 24/7, year-round services strategy that broadens the game experience beyond just playing is going to be a necessity," said Berger, speaking to MCV.

"Right now, it's an option, but in three to five years, it won't be. To support a diverse player base, you will have to have a services and ongoing content strategy. I don't see how games are going to manage without that. Elite is about Call of Duty being bigger than ever five years from now and laying the groundwork for that."

Let's not forget that while you have to pay to access Elite's full suite of premium features, much of the service can be used for free. Berger isn't necessarily insinuating that all games will demand you to sign up for a paid subscription.

Although he's not exactly ruling out the possibility, either.