If they ever get around to finishing your husband's application, they may ask for updated application forms. Most often I've seen the request made for a new Background Declaration (Schedule A) and since this application has taken so long, it's possible this will happen with his file. They may also request a new IMM 008 and the Additional Family Information form as well but they are easy to complete. So obviously the baby gets added to the forms if this is the case.
Yes they already mentioned that *if* they ask for new documents, the background will be one. I think mostly everything has stayed the same - except for the baby of course. So it shouldn't be too hard to do. What's the IMM 008 again?
Lynn