A listing for Medal of Honor Warfighter on EA's Origin Store appeared to confirm that customers who pre-order the game will gain access to the beta.
Responding to a question about the Battlefield 4 beta on the game's official Twitter account, a DICE spokesperson said not to trust unofficial information.
They wrote: "If you don't see it on our official site, http://Battlefield.com , then it's not official. ^ED"
A further tweet said that the game existed only in the hearts of minds of Battlefield fans.
"Battlefield 4 exists only in the hearts and minds of our devotees, for the time being. ^LA"
Battlefield 4 is yet to be officially unveiled by EA, but the company has admitted that it is working on a new entry in the series, and the Origin listing appears to offer confirmation.
Battlefield 3 is already one of the company's most successful games, breaking its shipping record with ten million copies to retailers on launch day.
EA launched the Battlefield Premium subscription service last month, granting users access to new content two weeks before it is made available to the public for an annual fee of $49.99 (£34.99).
Developer DICE recently added the 'Matches' feature to the game's multiplayer to help users who rent a dedicated server to coordinate online games with friends and squad members.
> Read Digital Spy's review of 'Battlefield 3'
Watch a trailer for the Battlefield 3 'Close Quarters' expansion below: