- A retired superhero longs for glory days
- Superhero's superspouse wants to settle down
- OCD boss of superhero can't accept breaks with protocol
|No matter how ornate the armor is, he's still nothing new|
1. Originality and interest are good
2. Unless those things mess up the story or alienate the audience*
So an unimportant character with a premise that requires screentime to explain is a bad thing. Also bad: a main character that has an interesting premise but that is incompatible with the premise of the story. And of course, if you're making a property for popular teenage girls, they will not be impressed with your mossy hobbit-hole tree world, no matter how rich with history the magical runes are. The only (*)exception to the don't-alienate-your-audience rule is when a story beat requires something that the audience would be uncomfortable with.