I'm sorry, I don't entirely agree. If the company had said "we've bought the designs" and then incorporated those designs into a different company with a different set of offerings that happened to have the EB1 and EB2 in a back catalogue or something, fine. But that's not what this is.
Rules are rules and law is law, but common sense is common sense.
If you're buying the name "arcaydis" under which Richard ran the company, and coming onto forums and stating "the eb1 & eb2 are back in production" then regardless of legal binding requirements or whether or not this is technically 3442234 UK inc. or not operating under the name "Arcaydis", I don't give a f*ck, you should address this very obvious, very hanging issue not unlike a broken nose bleeding into a taped up rag on a first date.
I don't care what the solution is, how it's addressed. "Hey to everyone whose orders weren't fulfilled, we will give you 50% credit towards--" blah blah, or "will fully honour all deposits on file" or whatever. Something. Address it. Otherwise it's just stupid. If it was worth it to you to buy the name, and buy the models, and keep the model names, it's worth it to you to right the ship before sailing forward. Period.