I question whether Dr. Lies has ANY CLUE what is in store for trans people. I think it's a sad commentary that we go to a cisgender surgeon whose main area of expertise is medical and ask him to make predictions about social, political, commercial, and legal changes, instead of asking a leader within the transgender world.
I met him at the Philly Trans Health conference in 2013 and I was unimpressed. He seemed clueless about non-binary gender and generally out of step with the current state of life for transgender people.
I would not see him as any sort of expert.