Hi Redd Killian, That is most likely up to Modiphius Entertainment rather than Roll20. Generally the process is that a publisher goes to a content converter, either Roll20's content conversion team or another content converter, and pays them to put their product into Roll20. As a result it is usually up to the publisher whether or not to put additional books into Roll20. There may be exceptions to this of course, but this is the general process used. Put another way, I'd send a message to Modiphius Entertainment and ask them to put more into Roll20.
