Toure was out of contract at the end of last season but after an impressive run of form convinced manager Pep Guardiola to give him another 12-month deal.
However, he hasn't started a game in the Premier League this season although he insists he can still perform in the Premier League.
"I would never celebrate a goal against [City]. I don't want to face them but if I want to stay in the Premier League I will have to," he added.
"I am very sad about [not playing]. I wanted to be more part of it on the field, not out of the field. But look in our dressing room and they are all competitors now, with the will to win and to achieve. It's a great ability, and I love it.
"But you can only have 11 players to play, and those who are not playing are not happy. How can you make them happy?
"As one of the older guys at this club, you have to help things carry on going. I remember when Kun [Aguero] was in great form and Gabriel Jesus was not playing and not happy as he was not being picked, I took him to one side and gave him a pat on the back. The manager doesn't know I'm doing that.
"That's why you see the guys sing my name and come to slap me. They don't mean it bad, or because they love the song, they just give me the respect I have given to them."
Toure is looking forward to having the opportunity to say his goodbye to the fans just as another City legend Pablo Zabaleta did 12 months ago.
"It's something very great. It's nice, something you can look at and maybe see how effective you have been for the club," he said.
"Seeing a football club do something like that for one player is very special, to keep you alive and to say thank you. I have been at this club in a crucial moment, to move them ahead from a different situation.
"I am lucky enough to have this, but when you look at the past and players like Joe Hart, Pablo Zabaleta, all these players who have been here a long time, I am privileged to have this.
"It's going to be good and it's going to be sad. It's going to be sad, but I'll be more happy for the fans. I'll be sad because I'm going to miss them a lot, I'm going to miss my teammates, I'm going to miss my little Sterling, my little Sane. They look like my babies. I think it's their fault, that's why I'm going out! It's their fault!
"They're going to have a bright future. Of course, I will continue to come in and this is going to be the difficult part -- playing against City."