Six youngsters have been involved with the first team since they returned to training last week.
B team players Ansu Fati, Riqui Puig, Alex Collado, Ronald Araujo, Inaki Pena and Monchu have all trained under Quique Setien's orders.
As a result, these six players are not expected to be available to Xavi Pimienta for Barcelona B's Segunda B playoffs, whenever they take place.
It will be Setien who decides who he wants to keep in the first team when the season resumes.
Instead, eight players from the Juvenil A side - Barcelona's Under-19s - will be promoted to the B team.
They are Ilaix Moriba, Konrad de la Fuente, Mika Marmol, Nils Mortimer, Peque, Alvaro Sanz, Nico Gonzalez and Jaume Jordi.
Barcelona B are set to take on a fourth-placed team in the first round of the play-offs, with the likes of Real Valladolid Promesas, Pena Deportiva Santa Eulalia and Yeclano all possible opponents.