I was thinking after reading the thread regarding new systems and features and I got an idea, I am not sure if it is bad or good, but since it might be good I will expose it around here and let you guys decide (I didn't answer in the thread because this would be a rules thing more than a system or feature thing).
I would suggest the "Variable MPC application".
As it is known, most AMPCs find a severe game over whenever they get killed. This haves the consequence that the MPCs that usually stick are those who have a way to scape if things go south, mainly, Vampires and Wererats from the top of my head.
Maybe taking this fact into account and letting those who select less survivable MPCs create various monsters (Like 3 or so) would make the monsters we see terrorizing people variate more and make the nights more oppresive, since in some way this would increase the ammount of MPCs present on the setting and in my experience they are one of the elements that provide more RP in a self-regulating way.
Another way of implementing this would be to allow to make one main MPC and two minor ones. (A classification would be needed) The important part of the application would be major one, and then the minor ones might be of a lower level or a lower survivability.
Since a lot of people when do their applications to MPCs dont want to make one that they will easily lose, this might give them the courage to do one that they wont lose and try some new or different things on the sidelines.
Maybe it is too much or I am overseeing something, but I thought it could be interesting.