Will they tell him he's sure to play and then not give him the games? Yep, almost certainly.
Possibly, but it wouldn't be particularly wise. That particular trick has already started to hurt big clubs rather badly in retaining young talent. Promising him time and then consigning Broja to a bit role when he could be a consistent PL starter would be the sort of thing that would remain fresh in the mind of youngsters (and their agents) for quite a while.
