So I was looking at what settings this guy uses and he dropped an interesting tidbit about the language setting. Now I've only played in English and I think it's fine. But he mentioned there are lines in the game if you put it in Japanese that are not in English. So for curiosity sake I switched it to Japanese.
It's true, some voice lines are present in Japanese language setting that are not in English such as when a trial starts.
In English there is nothing said, but in Japanese it says," TRIAL START!" - which is funny because they are speaking English but I guess it's a Japanese person saying so it isn't in the English version. It kind of reminds me of classic PSO2 having some guy spout Engrish all the time which I felt was lacking in this version but I guess you just have to set it to Japanese to hear it.