Gameinformer lists four reasons why The Banner Saga 2 is better than the original game:

The Banner Saga 2

Four Reasons The Sequel Is Better Than The Original

Stoic’s original Banner Saga set up a planned trilogy of strategy titles that explore the state of a Norse fantasy world after all its gods have died. The company’s sophomore release continues this tragic tale while improving on the compelling strategy framework of the first game. After getting six hours of hands-on time with the near-finished product, we’re more eager than ever to see how this journey comes to a close. Here are four ways Stoic has improved its epic Norse strategy series.

1. Story is still king [...]
2. A second caravan [...]
3. Enter the horseborn [...]
4. Combat has evolved [...]