- I would think they're fine as long as they leave within 30 days, as instructed in notice, regardless I-94 expiration. It's a different story if the notice was received prior to I-94 expiration, and was instructed to leave according to I-94.
2. More complicated question.
My hu*****an filed greencard application for me 5 years ago. He is permanent resident and we have waited this 5 years. we just filed I485 this month. Meantime, he got notice for Citizenship interview. My question is: Is my I-485 will be processed as slow as employment based application or as fast as citizen's spouse application?
No, your hu*****and needs to file a new I-130 to pull you from FB-2A to FB-1, after he has become a citizen.