Why is this being treated as a fact? Looks like a standard rumour to me until he or City say otherwise unless I've missed something.
Can't see the benefit of letting him go this summer, we're already a man light in midfield, Fernandinho needs replacing too, gundogan going would leave us with 3 midfielders in total, foden is the only player in our squad even remotely close to being trusted in the middle and he's still a bit away in my eyes.
Bringing in 2 midfielders minimum who will need 12 months to settle puts a lot of strain on our current three, one of which generally has several injuries a season in kdb and another in Bernardo isn't even guaranteed to be staying yet himself.
Would be a huge loss, nobody else gives us the tempo and control in the game like him. Unless we can get a seriously good fee for him it would make far more sense to get a final year out of him giving us time to integrate dinho's replacement into midfield and get foden ready which then gives his eventual replacement more leeway to settle the season after.