There have been types of Jacks previously (I recall it being called the Inventor in one game). I think that is a dangerous assumption, we have already had Gladiator and Spy, both of which have not been player before. There are likely to be more new roles.
You suggested that the mafia have control over Stiltz, but it is inconceivable to imagine there being more than one godfather, or a lawyer, or even another made up role? Adding to what I said above Jiro is the creative type, and this does appear to be a role based mindsmurf (especially given the bus driver). I would expect more new roles.




