he's gorgeous and though I am no expert, I think that ear will go up. I knew a shepherd whose had a broken ear, but it was "broken" on the outside fold. Yours looks like there is lift on the inside, and not a break on the outside. When the inside stiffens, the ear looks like it will go up, no "break".
Have you looked into chews to strengthen the muscle? My teething pup is crazy right now for split elk antlers (split so the marrow is accessible) and I guess it is the esophagus of cows. He likes these better than marrow bones.