Do we have much of a timeline of the two weeks before Archie was born to see if they were out and about much and any change in their demeanour?
I believe he was 2 weeks older. Maybe it was to duck with the press. It was hardly to give themselves some family time with their newborn. My theory is that it was a surrogacy, and the paperwork/ handover took 2 weeks to complete. I'm on the fence as to whether Archie is genetically related to M, I'm leaning towards no but think he is Harry's son.
I think Lili was a failed surrogacy and they don't have her, if she exists at all.
I think they tripped up with their lies and the RF asked for DNA testing and M took umbrage... hence the 'apology' she's waiting for. That's also the reason she and the kid(s) have never gone near the family after leaving because staff could obtain dna. And probably every meet with Charles consists of him saying "Harry, are you willing to do DNA testing? No? OK duck off then."
They were the ones to put titles on the kids. That was supposed to be a gotcha I think. But one thing about them that while they are sly and scheming, they aren't that skilled at seeing the long term implications of their lies and how it might play out. The grey suits do. So I'm guessing the game plan from the RF was to say as little as possible, not fix the estrangement as it's useful in the future and see how the two would maintain the fiction of the kids, especially as babies get older and go to school and do what kids do.
If it blew wide open tomorrow that Archie was not genetically Meghans and that he was from a surrogate, and that there is no lili, the RF have enough plausible deniability to say that they were as much in the dark as we were and could spin it well enough to be well clear of the shitstorm. They were estranged so all Charles got was video messages and drawings... none of the RF confirmed meeting Lili, did they?
And I think this is what the stalemate boils down to. The Palace are letting the clock tick down until the public or the mainstream press start asking the questions we have been asking all along. If they ask, it's racist and bullying and disgraceful behaviour towards two small children. But if we do it....