He's not going to Egypt. If you look at the last paragraph he says he looks to Atticus and speaks before he changes his mind.
[quote=Crabmeat]
He looked to Atticus before he changed his mind. . “I will go with you.” The next two words were a great release, the two syllables carrying all the weight of his world. “Old friend.”
[/quote]

But I do agree with Unlit, some lovely posts to return home too.