Hi
I checked when I was with my application pending, and I am very much sure nothing has changed. The only thing you can do is wait to get it approved.
Here are the documents you would need to apply for a SS (c/p from their website)
Identity
Social Security will ask to see a current DHS document. Acceptable documents include:
Form I-551 (includes machine-readable immigrant visa with your unexpired foreign passport);
I-94 with your unexpired foreign passport; or
Work permit card from the Department of Homeland Security (I-766 or I-688B).
We may use one document for two purposes. For example, we may use a DHS work permit as proof of both work eligibility and identity. However, you must provide at least two separate documents.
Now - you have to wait for an approval in order to get your I94, then you have to apply for EAD, and then you can get SS. I also called the SS office the other day to check for myself whether I can apply with the I94 and passport (which is expired) and they told me I had to wait to receive EAD first.
Be patient! it will happen. Good luck