Thank you very much for the invitation! I'll work to see if I can figure out something to submit.
The talk I'm currently preparing revolves more around the different niches available to UX professionals, like UX design for tv apps, virtual reality, video games, adult content websites, automotive applications, etc. My goal has been to make UXers aware that these disciplines exist as areas of personal and professional growth.
The only thing I could think to submit for the conference is a talk about how the context of technology use in these fields affects our decision making processes. The difficulty I'd have is that I'm far from an expert in the field, or really any of the UX niches described above. I don't have the bandwidth to do any actual testing on these pieces on my own, and as most of these fields are emerging niches, not much has been written about them from a UX perspective. What I'd have to go on would be my own general UX knowledge, interviews with the few experts that I can find (in some cases there are no generally recognized experts,) and the limited academic writings I'm able to run down on the topics.
My fear is that this would fall short of the bar set for most presentations at the conferences, but I'd love to hear your thoughts.