As you can see, it's listed as the "Omaha" Demo, which is one of the internal codenames for Battlefield: Hardline. I wouldn't get too excited just yet as it's entirely possible that this is going to be used for internal testing or for a very closed beta that the public will not be a part of.
You don't have to take my word for it. You can see the entry for the Omaha Demo yourself over at the Sony Entertainment Network website.
