Kadokawa Games, the parent company of Form Software, makers of Dark Souls, will be hosting their own press conference during E3, but they will be doing it in Tokyo at 13:30 JST / 12:30 AM EST.
In an announcement translated by Gematsu, Kadokawa Games announced they would bring the latest info on "Demon Gaze 2, God Wars: Beyond Time, Root Letter, and so on." Kadokawa Games also has The Legend of Heroes: Trails in the Sky the 3rd Evolution and Reco Love for PS Vita in their line up, so it is possible that those games are hiding under the illusive "and so on" part of their announcement.
Kadokawa Games is also the parent company of Form Software, the developers of the beloved Dark Souls series, so it is possible that we'll get the latest news from them as well. The only Dark Souls news that fans should expect are the news about the upcoming DLCs for Dark Souls 3 since Hidetaka Miyazaki said that Dark souls 3 was the end of the series. Though news about Form Software's new VR game should be expected as well.
There has been no word on if the press conference will be streamed, posted later on YouTube, or if it will be a close event. We will bring you more news about this as it arrives.