Just got the status update. Refused, again. So, yes, they are sending back the passport, but with another 221(g) administrative processing (most likely i hope).
**Just some updates for everyone from my last post**
My husband and I found another joint sponsor who is very qualified, got all the required paper work (passports, taxes, proof of income, proof of employment, and of course I864). We sent all that in exactly two weeks ago and today we received the refused status and the email posted above. I had the documents reviewed by a lawyer before sending it in and they gave the green light. So, until we get his passport back and the letter attached we don't exactly know if this is another 221(g) or other possible scenario. I will say that our lawyer said it is most likely administrative processing 221(g). We will update with further info, but if anyone else out there has a similar experience we'd love to hear some insight/advice/outcomes. Thanks to you all, as always.