7.1 msq ending again

I think there's a 0% chance that the Sphene in Solution Nine is in any way, shape, or form made from any part of the previous Sphene. As Wuk Lamat pointed out, the real Sphene would absolutely not offer immortality to only 5,000 of her people. If for some reason there was no other option, she would be distraught and apologetic about it, not chipper. My money is on either some remnant of Preservation, an Ascian (wouldn't it be funny if it was Pashtarot after all?), or both.