Hi Manal,
Ahmad's hemoglobin is quite low, and if he stays at that level, there will be at least some kind of bone deformation as he gets older. As long as he does not get frequent blood transfusions, then his bone marrow will continue to work at some level on making red cells, but not enough to keep him at a high enough level. If the reticulocyte stops elevating, then it just means that the bone marrow has given up to the fact that there is a dysfunction going on. Bone marrow shut down is not going to happen, because it will continue to work, even though it's making defective RBCs. The only way the bone marrow will shut its RBC production off is if he is regularly transfused.
Honestly, this is usually where the difficult decision takes place for a parent of a child with Intermedia, which my parents had to do with me when I was stabilizing at a very low hemoglobin as a baby. My bones started to change, and that's when my parents decided to hypertransfuse me. I was probably a Major anyway, but I could've probably held off being transfused for a little while longer if my bones hadn't started changing. However, my bones eventually went back to normal after the transfusions.
You may decide that you want Ahmad to get a transfusion here and there, so that his bone marrow doesn't have to work as hard, and cause bone deformities. On the other hand, you may decide that he is doing well without them, and take it one step at a time. Intermedias seem to adjust to the very low hemoglobin that they stabilize at, but the bone marrow will continue to try and make cells, even though they are dysfunctional cells. He may not even need any transfusions, or may need them on occasion as an adult.
He will be ok either way, but there are always pros and cons of transfusing with an Intermedia, as there is for anything. That is something that you need to work out with his doctors. If you are not comfortable with the decisions that his doctor is making, then I am a complete advocate for getting different, and numerous, opinions.
If you need anything, or have any other questions, please do not hesitate to ask. I will be happy to give you any of my advice, and I'm sure Andy and others will give you their opinions as well. Sometimes other parents of Intermedias, or patients themselves, can give better advice than any professional can. Experience in the matter is very important.