Um... I don't think there will be a season 2 for YOI.
Its confirmed. No season 2.
Because, it wouldn't be good as season 1.
What are you talking about people? The productors said that they wanted a second season but that is gonna take a couple of years, but i never read something like "there won't be a second season"... -_-
Here's what I want for Yuri on Ice Season 2 (it hasn't been confirmed yet but we all know it's going to happen sooner or later).
So, Viktor's going to come back as a competitor and also Yuuri's coach at the same time. But then something happened and he injured his leg/ankle (whatever it is) and couldn't perform for the season, and the doctor even said he can never perform again for the rest of his life. And for that, he fell into depression and started avoiding everyone.
He lost his will to live. Everyone encouraged him to get a leg therapy but he just didn't want to do anything anymore. Yuuri blamed himself for the accident and he also started to avoid Viktor because of the guilt. This broke Viktor even more since he thought Yuuri didn't love or regard him as a coach anymore because of his i njury. They got into a cold war for the longest time ever and Yuuri's reputation for the season started falling down.
Yuri (Plisetky) noticed this and he got mad (like he usually is lol) and went on into a full lecture and told Yuuri that he isn't the one to blame for Viktor's injury. The other competitors (Chris, Otabek, Phichit etc etc) also told him the same thing. And Yuuri finally grows some ball and face Viktor. Yuuri wanted Viktor to get the leg therapy but Viktor, who still think that Yuuri hated him now avoid him at all costs.
And this brought us to season 1 where Viktor helped Yuuri to be more confident with himself and succeed in doing that. This time, it's the other way round. Yuuri encouraging Viktor to get the leg therapy and boosting his confidence back.
*imagine Yuuri yelling at Viktor while crying, saying things like "this is not the Viktor that I know!" or something like that, like the way he did during the Cup of China where he cried and yelled to Viktor for saying he will take responsibilty and resign as his coach if Yuuri messed his performance*
And then Viktor finally realized everything and started getting the leg therapy with Yuuri and sometimes some other competitors accompanying him everytime.
They will still show the Grand Prix series along with Viktor's development at the same time.
In the end, Yuuri will win the gold but at the time he was on the podium, Viktor was still receiving his therapy at the hospital so he didn't know thar Yuuri had won the gold.
(note that Viktor is on wheelchair the whole time bcs of his injury and he lives in Hasetsu with Yuuri these whole time)
And so, Yuuri wheeled Viktor to the Hasetsu ice rink, just the two of them, in the middle of the night after he went home to Japan after winning the gold. He skated to his short program and free skate in front of Viktor (who had never watch him perform them before bcs he couldn't follow Yuuri everywhere due to his injury). It was an emotional skate.
Viktor cried watching it because he thought how Yuuri had grow so much during his depression these whole time and how he's so proud of him.
But then, he was shocked and cried even harder when Yuuri pulled out his gold medal and wore it in front of him. The scene ended with Yuuri, on his knees, hugging Viktor who was on the wheelchair and both of them had happy tears on their cheeks :")
There can also be an additional scene where Yuuri was late for Viktor's appointment with the doctor yet when he arrived, he saw Viktor trying to walk (after months of being bounded on the wheelchair) and Viktor smiling to him so widely.
That's it. Lmao that's so long. I love angst and yet I also love happy ending ლ(´ڡ`ლ)