Got mine in the post today they look very nice. Sadly I had hoped to mix them with Fireforge stuff to give me more variation, on a fantasy project I'm starting, and my initial thoughts are they won't match together very well. The Conquest ones seem a bit smaller (especially the weapons the lances in particular). Looks like I might have to keep them in separate units rather than kit bashing the two together. Still nice looking miniatures and thanks to the pre order discount less than a £1 a knight
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Ok quick supplemental I just dug out some Fireforge sprues and the size isn't as bad as I first thought. The Fireforge knights are slightly bulkier but not horribly so. Heads and arms seem about the same size and both use the same type of head attachment (i.e. flat bottom of the head neck on body) so head swaps should be easy between the two types.
The main differences are the Conquest knights have the shield arms attached to the body and separate shields and the Fireforge knights have separate from the body shield arms with shield attached. The other main difference is the lances the Conquest ones are about half the size of the (admittedly huge) Fireforge lances.
The horses for both are similar the Fireforge ones are a tad larger but that might just be the cloth barding.
So on a second look kit bashing looks like a real possibility apart from the lances happy days.