Idea for an AU...

[sweettalkeress.livejournal.com]

So I was following this rather lively discussion on my latest post and I got to thinking about a possible AU in which Lily had died giving birth to Harry (i.e., in addition to or instead of that whole Merope thing). We all know the situations between Harry's and Voldie's mothers weren't analogous (a fact that seems to have sailed clear over Rowling's head) but what if they were? What if Harry's mother had suffered exactly the same fate as Merope's (with the possible exception of the inbreeding part)- or alternatively, what if Voldemort's mother had died in some other fashion? How do you think the conversation between Harry and Dumbledore would be different if this had been the case? Ideas?