A new Sony trademark points to what could potentially be the PlayStation 4's equivalent to PlayStation Home.
The trademark listing was filed on February 6, 2012 by Sony Computer Entertainment Europe and subsequently published on January 1, 2013
According to the description, captured by IGN, BigFest is a service for "hosting on-line web facilities for interactive game play; hosting web sites of others for video and computer games or parts of video and computer games created by others on a computer server for a global computer network."
The description continues to outline the function of the service. "Introduction and social networking services, namely, introducing video game players to each other for the purposes of playing multiplayer games online, participating in online games communities and competitions, and online player networking and social introduction."
SCE London developed the existing PlayStation Home.