Dimitri Seluk says that the 31-year-old has been disrespected by his current employers and claims that the chances of the midfielder staying at the Etihad Stadium are 50-50
Earlier on Tuesday, the player's representative claimed that City had disrespected the Cote d'Ivoire by not wishing him a happy birthday at an event in Abu Dhabi on May 13.
Toure spent three seasons at Barcelona before joining City in July 2010 and Dimitri Seluk maintains that the Spanish club is "another home" for the 31-year-old.
"He is a very professional player and he will work hard for any club he plays for. Every club he has been at he has been one of the best players, if not the best," the agent told talkSPORT.
"It's difficult to say now [where his future lies]; maybe after the World Cup we'll know more about his emotions and the situation.
"But what I do know is that the staff at Barcelona, the players and the fans all like Yaya very much. Barca is one of his former clubs, he had a great time there and it's like another home for him.
"It's obviously the same at Manchester City. The fans love him very much, they understand Yaya is a great player.
"If people don't give us attention we will forget about them and work with other people."
Seluk has claimed that Toure wants to leave City at the end of each of the past two seasons and again believes that it is uncertain whether the midfielder will remain with the Premier League champions this summer.
"Honestly, it's not 100 per cent he will stay at Manchester City, it's better to say 50-50,” he remarked.
"I tell you this is not about cake, more importantly it is about attention. Yaya can buy cake for everybody and it's no problem from him.
"When Yaya is on the pitch he works very hard for the entire 90 minutes. He takes the ball from his own half and runs the entire length of the field and scores beautiful goals. There aren't too many players who can do this.
"He has motivation to play well for City, he fights for City, but he feels he fights for the team and the club forget about him. It's very upsetting for him."