I am in the same situation. My pup is 8 months old on Friday. Had ear forms in for two plus months, fell out last week and ears flopped again. My trainer tape them up for me and I plan to keep them taped till she is a year old or they stand on their own since the tape is not bothering her. I have heard that some Sheperds ears have stood as late as a year so I guess there is still reason to hope..
Nala Vom Vetrauen 3/15/12