Keeping in mind the themes, character development, plot development that has occured in the book. Also do you think Khaled Hosseini would agree with you?
At the novel's end, Hosseini writes that Amir and Soraya have begun to get involved in rebuilding Afghanistan. I think that in several years' time, they would visit Afghanistan, but I doubt that they would take Sohrab with thembecause it would be too emotionally damaging. Perhaps they would stay with General and Mrs. Taheri.
Amir would continue his writing and would possible add more political and activist elements to his writing because he now feels burdened for his country--he is at peace with his homeland.
Soraya would become pregnant, because now that Amir has redeemed himself, he no longers sees their infertility as a punishment.
Sohrab would slowly begin to talk to Amir and Soraya, but it would take longer for him to talk to others. He excels in school, especially reading because he knows that that would make his father proud.
I think that the author would agree with this "sequel," although it lacks his effective style! Hosseini makes it clear that while things are on the right track for the couple and boy at the end of the novel, it is going to be a slow process. He is cautiously optimistic.
At the end of the novel when Sohrab and Amir fly the kite together, the suggestion is that Sohrab is beginning to break out of the fear, silence, grief, and shame that had caused him to withdraw from life for the first year after leaving Kabul with Amir. Considering the love and patience they had extended to Sohrab during this difficult period of adjustment, Amir and Soraya would surely continue to nurture this damaged child, providing him with the security and stability he would need to heal. Eventually, Sohrab would begin to trust again. He would reclaim at least a part of his lost childhood.
Amir would tell Sohrab tales of the boy his father had been--how brave and bright and loving and loyal he had been. Amir would not disclose the horrible tragedy Hassan experienced, as this knowledge would only hurt Sohrab and he had experienced enough hurt in his young life. Amir and Soraya would keep the Afghan culture alive for Sohrab. When Sohrab was old enough to ask and understand, they would explain the terrible discrimination experienced by the Hazara people, putting it in proper context.
Amir would pursue his writing career and succeed as a result of his talent, sensitivity, and determination. Having earned some wealth, he would turn his attention to the orphans in Kabul, providing financial assistance. This would lead to Amir and Soraya's adopting an orphaned boy and bringing him to their home. Sohrab and the new son would find a brother in each other, and their friendship would mirror the best of the friendship experienced by Amir and Hassan as boys. They would fly kites together.
I think Hosseini would like this scenario because it affirms love and faithfulness, continues Amir's personal growth, and brings the story full circle again.