Honestly, whether there is a story or not, Soul Calibur needs to provide an ample amount of offline presentation, and this series has no excuse given the modes they provided in the past, like Edge Master Mode. Tekken, too.
Not because of my own personal discretions (I hate douchebags, or better yet, people, and online is filled with them), but because they need to draw attention to both casual and tournament audiences at this point. Mind you, Soulcalibur fans are wondering if they even care about this series anymore.
They clearly had potential to improve from SCV, but they were too weak, especially in Odashima's case, to put their foot down.