There is a strong group of people who did, and still do, live in Transylvania who are interested in topics, such as the history, or the people of Transylvania. Publishinga book is very improtant to building a idea about what Transylvania is all about.
These people have the ability to make any subject interesting. It is not hard, since Transylvania itself has such a long and varied history that you can find something from royalty to people that have left their mark on the land.
So, I do believe that there is a readership about the topic and the place of Transylvania.