He could keep it, he could lose it. My dog Snoopy has really light tan around his legs that isn't very noticeable, he's also grey and white. It seems to be lightening up as he ages though. Who really knows until he's an adult. My mom's dog was red and white when we got him, then he faded to pretty much just white, and the day he turned two he got his two red spots back that he had when we bought him.