Hi there, We have a 7mo old male Akita who is approx 75lbs. His ears haven't yet gone up, so we're wondering if there's anything to be worried about or if there is still hope that they will go up? He's an AKC purebred and both of his parents' ears are up. He had/has panosteitis (pano), but is getting better, so not sure if that could be why? Thanks!