Honestly I think it's just coincidence. SNK was looking for a way to make Geese look younger for Art of Fighting 2 and having longer hair seemed to do the trick. I don't think there was anything secret behind it. SNK has a habit of making characters too similar. Look at the K'/ Rock Howard issues they had when they were making both games. K' got the silver hair and sunglasses because he was looking way too similar to Rock.
Besides Terry was around 10 and Andy maybe 8 when Jeff died (rough guesing based of Wild Ambition). Saying Geese was in his early to mid 20's back then I think he would be mighty young to sire Andy.