Hey baobab, haven't seen you around forever, how is everything. I remember the case of Capeolive from last year that did that, but it took a lot of work and effort from his side in order to be succesful and time of course.
She can go to interview separately but only after your case is approved and they forward the approval to Warsaw. It is called a follow to join process.
Considering that your case number is high, you would not have much time left for such an approach, especially if they screw up and fail to transfer your file to the US embassy in Warsaw immediately. This happened to somebody last year, but they had a bit more time so the process ended well.
Is your wife living in US currently? If that is the case, I think the best option for you is to do AOS together in US. I notice that you already paid the DV fee for both of you. You should be aware that there is a name check process for AOS cases as well.