Despite the praise, as of now he'll be assigned to the Castilla. IIRC Kubo, Valverde and Rodrygo can't be registered to the first team for now due to passport limitations. You can call up youth players for a few games, so I guess they'll get some minutes in the beginning stages of Copa and will be phased out later when the better teams arrive.
Don't buy too much into the training hype, obviously coaches like to see him putting up a shift in the preperation, but clowning holiday returners with half-arsed training intensity is not giving him a free ride to a squad role (not that coaches don't appreciate that though). It's a normal thing among youngsters during preperation and trips with the A-squad.
For now he has to prove himself in the lower division and that's not yet a given. Surely has the talent to push for the A-squad one day, but that might take years.