When it comes to what video games are available on the market today, many people would have a hard time finding a gamer who isn't aware of the scope Kingdom Hearts has as a series. Since the first title was released in 2002, a number of other games have followed it, and now Kingdom Hearts 4 is on the way. For the 20th anniversary of Kingdom Hearts, series director Tetsuya Nomura shared a special message, which some fans have found hides more news about the next mainline game.