I was wondering why the documentary didn't appear, so I'm happy that at last we will see it.

I just put into English the trailer as the translation there was awful. The same journalist had a very sincere documentary about him last year in February.
"At last!!
I am looking forward to the next week, when Latvia will eventually be represented by figure skating in the Olympics after a 24-year break. It will be the delicate and smiling boy from Daugavpils, who is dreaming of his mother’s lasagna. He feels like a tourist in the midst of his peers and in the sports he has so high ambitions that any failure can threaten to ruin him.
Last spring we went to Daugavpils to get acquainted with our next Olympic hope, but we met a boy with a backpack on his shoulders who was loaded down with school tests. Finally, my last performance will end in the air before I go on a long vacation. (The journalist Žilde Krevica was going on maternity leave then)"
There in the comments, I found a very touching note from Ms. Pavila. It's dedicated to Deniss' granny. We know that she was a big Stephane's fan and cherished a dream about Deniss' career. But I didn't know that she has passed away.
"His grandma believed in Deniss's success. She took the little boy in the middle of the day from the kindergarten to the ice hall. Her dream back in 2004 was that once her grandson will participate in the Olympic Games and the whole family will watch Deniss live on TV. Years passed and grandma's dream has become reality. Thanks a lot that she dreamed it up, believed, helped, encouraged and for a few moments was the only one who believed from all her heart!!! That it will succeed!!! That he will achieve it!!! That once dreams come true!!! Deniss’ Grandma would be very proud now."