Dimitri Seluk claimed that the African Footballer of the Year felt unappreciated after the club did not mark his birthday earlier this month, while Toure took to Twitter earlier today to say that he will confirm his future plans after the Brazil tournament.
The agent has since told talkSPORT: "Honestly, it's not 100% he will stay at Manchester City, it's better to say 50-50.
"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. 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.
"When the club celebrated winning the Premier League, everything was good. Yaya had a great season and everybody at Manchester City was together. But nobody said congratulations to Yaya for his performances, and that made Yaya think the club doesn't respect him and don't give him enough attention. Of course it's not a question about the money, his relationship with the club is the most important thing to Yaya."
Toure, who joined the Premier League champions from Barcelona in 2010, scored 24 goals in all competitions during the 2013-14 season.