Hoping to see Unchained have very good pacing thematically as well. RotR, Spidey and (for the most part) JWA do this tremendously well, with the tension and stakes (pun intended) constantly rising as the ride goes on. Don't play all the aces with Drac showing up immediately, build up to him being a big reveal!
After all, it's Victoria's pride in thinking she can control him and make him her tourist attraction that leads to the events of the ride happening, so how fitting and epic would it be if we first encounter the other monsters, each getting deadlier and more vicious than the last, as a buildup to seeing the count himself.