No, there'd be no Harry because I, as Lily, would have gone for the goth instead of the goober.

But I can't see Snape as a dad, either. Lily would either be all weepy, complaining that he's always out with those dreadful Death Eaters and never spends any time with little Sevvie or casting a rolling pin spell and screeching, "Out all night again, you WORM!!!"