Koshiro just arrived at Haneda airport with Shoma.
https://www.hochi.co.jp/sports/winter/20181211-OHT1T50153.html
Summary: Koshiro is staying in Japan with Lambiel for Japan Nationals (not going back to Switzerland for now)
He's planning to do a 4T and 2 3As at the Nationals. After the Nationals, he's going back to Ehime, looking forward to eating lots of mandarin oranges at home.
https://www.hochi.co.jp/sports/winter/20181211-OHT1T50152.html
This article is about Shoma and his comments, but for some reason, the photos there are of Shoma waving to Koshiro who was receiving an interview.
edit:
Another article on Koshiro
The title literally says: Seeing 'Shomaism' that he always takes his own path, (Koshiro) says 'I have to learn from him'
https://www.daily.co.jp/general/2018/12/11/0011896589.shtml
Summary: Koshiro says he's pleased with the result, but he thinks he just got lucky to be on the podium. He wants to be on the podium in his own the next time. He spent a lot of time with Shoma during GPF, and says he learned a lot from him, such as Shoma's stoic attitude and passion. They played online games together A LOT too (as always when they have time) while Shoma never tried to cooperate as usual, even though they were playing a game that requires a cooperation work to win.
edit2:
More coming...
https://www.sponichi.co.jp/sports/news/2018/12/11/kiji/20181211s00079000322000c.html
Koshiro says "Shoma is always himself and never changes (his attitude) before nor after competitions. He's a very approachable senpai, and it was nice that he made me feel relaxed (at JGPF)"
According to
this photo's title, Shoma was trying to make Koshiro laugh during the interview, teasing him from behind the cameras, and journalists loved it.