I filed visa extension for my parents at the beginning of July and received the receipt about 4 weeks later. However, our case hasn't been processed yet until now. I just checked the uscis website and see their current processing timeframe is in May. I've booked air tickets for my parents in the beginning of January. According to their current timeframe, I don't think my parents can get their 194 before January. Anyone has such experience before? What did you do? Thanks a lot.