Well looking at the simulations, it is possible to make some predictions about what roles are possible for some of the people who are chosen. However, what makes this problematic is that there is a fairly good chance that scum is in the list of people who were chosen as one of the four, and there is no reason for us to believe that they are going to be truthful about who they were targeting. This untruth might throw us off while trying to make definitive conclusions, especially if there is two scum in that list of four.
There could be a chanche to figure out the lies, but I would assume it would also mean there would be a need for multiple nights of experimentation with different set-ups. But it doesn't seem we are going to get that luxury.