This may just be me but does any think that Millenium Flyer trains would looke funny on Son of Beast. Just the style of the trains makes me thing that they were designed to be on a smaller type more of a twisted track coaster than Son of Beast. Me personally I think they would look silly on Son of Beast.
PTC trains would even look funny on the track. I don't know why but I just think that they wouldn't look right on the track.
I am throwing this out there cause I have no clue on what is going to open but what if Kings Island approached PTC or GCI asking them to take the keep the fiber glass of the old Son of Beast trains and just redesging(spelling?) the underneath and mechanical aspects of the train?