Dualshockers posted an update on their website showing the new opening cinematic for Phantasy Star Online 2: Episode 4. The cinematic was taken from SEGA’s live niconico stream, and again features a setting on Earth, but this time we get to see the game’s heroes fight against a battleship that looks suspiciously like the Japanese battleship Yamato, the largest battleship ever built, which was sunk during WWII. In addition, fighter planes similar to the Japanese “Zero” (although carrying a different, fictional, roundel) appear in the battle.
So while the trailer avoids making a direct connection to the Japanese fleet and air force in WWII, the references are clear. The trailer is CGI for the most part, but there’s some brief gameplay footage near the end. We included the trailer below. It was recorded by Dualshocker’s Guiseppe from SEGA’s live stream.