The filing includes a logo from developer CD Projekt (which can be seen below), and the classification pins it under games and software.
In a new story from March, developer CD Projekt Red said they have their roadmap for the next six years laid out. The outline includes among other things a “new type of video game format previous unexplored by the studio.” With E3 right around the corner, it’s likely that Gwent may be that format.
We recently reviewed the latest Witcher 3 expansion, Blood and Wine. You can check it out here.