The game seems to be on right track. Some new characters, some from the previous game, but in new roles, that is nice. As the idea of documentary about the school time of hero of previous game - it will help people who did not play it to get some basic lore about it.
Plot line with Kassidy - the whole normal human, who suspects the existence of monster world (and is kind a fan of it), but is (obviously) ridiculed by other normal humans as believing in nonsense. It will be interesting to see how it will flourish - will she be rejected by the monster world or, in time, accepted (as a kind of 'honorary monster')? What will be reactions of other monsters to her? Probably they will also see her as a kind of oddity.
Fuyu - I wonder, if her language skills will develop during the game. That she will be using more and more common tongue, at first in a bit basic and not always correct way.
MC - I'm curious, how he will go with his condition and what is the source of it (I assume, that it will be explained, as it may be caused by sth, rather than 'just be like that'). Also, I hope we will get more lore on his parents. What were the circumstances of his father becoming a vampire? How he meet his wife? What is their status in vampire world (assume, that at least father is a newcomer)