Olmo ain't leaving anytime soon, he won't have offers with his injury history and age (he will be 28 by next summer) and he is tied to a contract until 2030.
And the moment Frenkie signs a contract, he will stay until it is over, we played that game before and at some point folks need to get the hint. He will never be sold.
I like Casado, but unless he is used as versatile player (like being used as RB) I doubt he stays for long. Versatility is usually the thing that keeps this level of talents long term. Like Roberto or Eric Garcia.
We love to hype La Masia, but we also need to remember that it happens that it goes on dry spells from time to time, and even during the dry spells, hype never stops. For all we know, none of the potential midfielders coming from next generation might make it, and we might just keep this group intact.
There is no need for this discussion now tbh