Probably neither of those. WW doesn't seem to overlap powers often. If the 5th is Time then Deus and Zack fill those lines up. We learned this update that Alice is in the line of the 6th as a 2nd Generation along with her Papa Fairy, who's 1st Generation. So that's probably not a thing for Amber and Liz.
If it's any Apostle Twins, it'll likely be from 9th and 10th or the 11th and 12th since we have no idea what their traits are at all, outside of some decent guesses. We don't even know if there's any spawns from their line that we've encountered this far. Outside of Alexis, Valravn and maybe Nyx, everyone seems to come from the 1st, 2nd, 3rd, 4th, 5th, 6th and 8th line of monsters.
I'm not saying it's not possible for them to overlap people with powers, by the way. It just seems like WW rarely does it. There's nothing in the plot that really says it can't happen.