I don't think they'll announce any DLC from survey until TGS or the end of the year. There's no possible way they have any of those DLC in a production phase beyond conceptual. At most, we'll see the results from the survey on July 1st. Gamescom will most likely see more of the VR game being highlighted, announcement of the multiplayer mode, announcement of major story revisions, and gameplay footage of Episode Ignis. We will likely also see updates for the magitek suits and CEO Boss fight.