Double spreads occupy 2 pages on the printed manga, so it's 19 pages not 14 or 15 as you guys complain.
That woman could be the same one as the wing spreaded figure on Skull Knight's horse, she also has a little statuette on her neck which resemble the one on the horse. The crescent moon symbol on her necklace also resembles that on Gaiseric's shield and armor as well as Falconia's symbol, although the latter has been remodeled into wings to represent Griffith instead of Gaiseric just as the rest of Falconia being a remodeled version of Gaiseric's ancient capital.
@Simkin I wouldn't mind if we spent a lot of time into his backstory, it would be super awesome. But i worry about the opposite, that ending with SK explaining what Guts just saw makes me think this is all we get for now. I REALLY hope the rest of it won't be released into a garbage light novel like Grunbeld's backstory, i want to see Skull Knight's origin in the manga.
Maybe Guts will gradually see his memories whenever he get into extreme fights and uses the armor to the fullest.