Do all the sentences make sense ?

??1. ?I thought he would become a singer, but in the end, he didn't.

2. ?He was going to become a singer, but in the end, he didn't

3. ?He was to become a singer, but in the end, he didn't.

4. He would go on to become a singer, but in the end, he didn't.

Do all the sentences make sense, sound natural and convey the meaning that he didn't become a singer?