Unknown. It all depends on how soon the priority date becomes current. The movement of priority dates cannot be predicted.
J Charles Ferrari Eng & Nishimura 213.622.2255 The statement above is general in nature and does not constitute legal advice, as not all the facts are known. You should retain an attorney to review all the facts specific to your case in order to receive advise specific to your case. The statement above does not create an attorney/client relationship. Answers on Avvo can only be general ones, as specific answers would require knowledge of all the facts. As such, they may or may not apply to the question.
I'm a bit unclear - if for parents of an over-21 US citizen son, it isn't first preference, it's immediate relative.
The question then becomes what has been done to process the final part of the case, and where? Different if they are here vs. abroad. Not sure if anything has been filed beyond the I-130 at this point.
Speak with a lawyer directly for a more thorough evaluation tailored to the specifics of this case.,