Toni kroos to Manchester city is not possible, it's too much of a tall dream, pep guardiola will not sign Toni, especially considering his age. i agree they will go for a long term solution, at least a much younger person. Kroos will be too much on expenses. Though Manchester city midfield is not doing bad, they just have to hold on tight till Kevin De Bruyne comes back from injury to strengthen it.
Even if Pep wanted Toni, I don't think Toni would want them. Toni is now about to become a legendary player for Real Madrid. He is a team player who, along with Modric, has achieved significant success in Real Madrid's midfield for a long time. I think he will probably end his career in Real Madrid.
Of course going by the reality of things you will observe that Toni will end his career in Real Madrid, at his age and considering his consistency in Madrid, it is likely that it will be his last destination because even on the national team he's no longer active on the national team. so there is no point for him to leave one of the biggest club in the world.
I am not 100% sure about that, it doesn't look like he is getting that many minutes and he will probably stop getting these minutes as well, the younger generation of midfielders that they have look like they are doing fine and because they look like they are doing fine, Ancelotti is giving them more minutes which means less minutes for Toni Kroos. That could result with him going to another team, they may not renew his contract as well, and the smartest thing he could do would be going to Saudi Arabia to get paid, I know that Modric said no, and maybe Toni would say no as well, but financially that is the best decision.
Why think about what people will say when the return would be 20-30 million more per year? That would be money you are saying no, not the fans, fans can say you shouldn't go easily because they are not saying no to 20-30 million euro.