did you have anything in mind for him? dick definitely loves his baby brother (even if he's not the blood son okay, damian, he gets it) to death and would do anything in the world for him.
i could offer up extended family, a mentor of sorts depending on what you do with him, someone to pester grey about everything and he'd do the same in return, an intern of sorts who works at the same law firm as grey, a 'little brother' grey took on in big brothers/big sisters program ages ago and now can't shake him, emigre wanted to see him around as well!