Yes. Watanabe and Kido are both in their thirties. They have gone to worlds several times, finishing in the second ten. Japan also has Nakako Tsuzuki, who has skated with several different partners and done well, but I don't think she ever went to worlds (she is in her 30s, too).Isn't there only one "world class" dance team from Japan as well?
Yeah, I love it! U.S. championships used to be like that, too.Judging from the videos, this competition is tougher than any nationals, and will certainly be tougher than the world championships.
Their mother is Japanese, their father is American. They won the U.S. Novice ice dance title last year, representing the Skating Club of Morris (New Jersey).
Here is a recent article about them by Barry Mittan.
http://www.skatetoday.com/