Kateness and I just watched the documentary of this year's race, and it's really well done (it's 50 minutes long so make sure you've got nothing to do as it will suck you in):
https://www.youtube.com/watch?v=AQwo6i3mX8EThe RD says at the end of the film that he's on a five-year development plan with Croatia's Tourism Board and the ARWS, culminating with hosting the ARWC in 2022.
After watching the film, Kate and I were ready to sign up.