I'm watching a documentary about the Florescu family which was a bitter enemy of Dracula's.
It turns out that the idea that the Turks cut off his head and took it to Istanbul is partially wrong.
It seems at the time of Dracula's death the common practice of the Turks was to use a very efficient method of skinning the head and preserving it with spices. In fact when Dracula's officially recognized tomb was discovered by George Florescu in about 1930 he said the skull had a handkerchief over it. That didn't jive with the accepted beheading theory at the time, but later made sense with the discovery of the Turkish practice I mentioned. So... perhaps someone on the SCV4 team knew about this and gave Dracula's second form the skeletal head as a result?