I don't believe so. AmigaKit were announced as the "primary" distributor, but not exclusive distributor. Also I think it was announced that all dealer enquiries would be handled by AmigaKit, which I take to mean as any dealer can distribute the X1000 but they have to obtain the machines from AmigaKit.
In any case, I'm not sure that website you're pointing to is actually offering the X1000 as a future product? I can see they're definitely offering the case and a slightly modified version of it called "the red one", into which they are fitting SAM boards but I can't see anything definitive that states the X1000 will be sold. But the website is in French so I may be mistaken.
AH.