The midfielder, who will be 22 this month, made his EFL debut in June but, in his third game, suffered a knee injury.
Head coach Gerhard Struber said: “Romal had his first training this week and showed me a good picture. But he is not ready for the game on Saturday (the EFL Cup tie with Nottingham Forest).
“I will give him two weeks to come back and give us a better feeling from the tactical and physical side. But, after that, he is a big player for our squad. He showed me last season that he is a very important player for Barnsley FC.”
Left-back Ben Williams is out for at least seven months with an ACL injury in his knee.