Lol fuck the project, this guy is making bucks at Barca while doing nothing. He probably doesn't even care about football anymore.
He would be dumb to leave Bar?a for Lyon.
If you talk about the sporting project, Lyon is selling its best players every year and even more so this year they have finished 7th in the league. As a consequence, Lyon won't play in any European competition next year.
If you talk about the economics, Lyon model revolves around selling (academy or not) players for a big profit. Lyon CANNOT survive without selling every summer. They need to pay for their big stadium they can't even fill consistently. Lyon cannot pay his salary.
And Umtiti problem is his knee problem. It won't be fixed because he is in France. He has nothing to gain if he goes there, which means he won't go there.