According to the Marketplace description, Just Dance 2014 is focused on social features that allow players to "connect and dance with players from all over the world." The description also mentions "iconic pop culture references," which are borne out in nine screenshots. The images, which you can see above, appear to reference the film Ghostbusters — specifically, the film's theme song by Ray Parker Jr.
None of the previous Just Dance games have been named with a year akin to a sports gaming franchise, but the series has seen annual releases since 2009's Just Dance.
Microsoft's pre-E3 press conference begins at 12:30 p.m. ET today, and Ubisoft's press briefing starts at 6 p.m. ET. Check back with Polygon for liveblogging and full coverage from both events.