Hello Everyone I'm super new to this site & I'm a yorkies MOM!! My baby name is Louie aka mommies man!! I've had him since March 10th 2012...Heres my question he got matted really bad

i shaved him down soooo low & all the black curly hair was gone

!! His hair is growing back but I WANT/NEED to know if the black will come back

??? HELP the default pic of him was when i first got him soon as i find out how to post more pics i will show you how he looks now. Thanks in advance