One city previously hosted an Olympics.
The 18-year-old U.S. champion also detailed a decision he must make after worlds.
The top U.S. woman is seeded seventh.
There is a difference between men and women's qualifying from Rio 2016.
Hernandez said in October that she hoped to compete in 2018 but would not rush a comeback.
With other top pairs missing, a five-time world champion is the story of the event.