Oh, they're here, they just arrived in Marpii. Which probably explains why not one but two Netherworld infiltrators tried to stab me last turn, so I couldn't share the news. Unfortunately for them, my guards were quite alert. Also, I used to be infil myself, which probably helps explain why the one that did get to me only left me with a light wound before getting caught.
They look nasty. Even taking into account how daimon units are routinely exaggerated in terms of CS on scout reports, we're looking at combined 60-75k CS in three units.
Edit: Forgot to mention, that's the force a single commander has. There are theoretically a couple more of them out there not including the one in Ajitmon, plus Overlord. Possibly up to 300k CS in the North alone if they all show up at once.