TOKYO - Warp was mysteriously absent from the show floor, although it did have people distributing fliers for the first official showing of D2. According to our sources, D2 will be shown for the first time at a press event in May.
Sometime before, or on the day of Warp's event, it's expected that information about the system D2 will be released on (reportedly Sega's Katana) will also be released.
That would most certainly mean that Sega will indeed be showing the Katana in some form at E3, whether just on video or in actual demos.