Everything you said is also correct, but we'd never know anyways as Part 3 won't go into their Teen years I imagine.Yes, however, no one will likely have sharingan ever again. Even in the Uchiha clan, with most members being full-blooded, the chance of attaining sharingan was low. Salad will likely never awaken it, she's living in a time of peace and won't ever see anything emotionally-challenging. To top it off, she wear glasses and has a 50% chance, once she has children, those kids will have even less.
Lol Looks like the sharingan ended with Sasuke.