If you are have already been DQ'd, I think it would be better to hold off and not upload the latest tax returns. Once the interview times comes around, you can always take the all the returns with you (the ones you uploaded as well as the latest ones issued after you were DQ'd). I think that is almost always the situation where the tax returns uploaded may not be the latest ones at the time of the interview, but they were the latest at the time of filling out the NVC application.