Kyle McGregor (Destructoid) has previewed Banner Saga 2:

Banner Saga 2 is 'basically the same' as the first

Except not really

[...]

In my limited time with the game, I witnessed a number of notable tweaks to the existing formula that figure to go a long way in addressing players' complaints about the original being somewhat of a repetitive slog. The sequel feels like a more dynamic, varied evolution on what's already been established, thanks to little touches like how battles arise and play out.

The Banner Saga 2 reinforces one of its predecessors greatest strengths -- how consequences born from player choice ripple throughout the experience like stones cast into a pond -- by having them directly bleed into combat, starting out battles with scenes that stem from your decisions, rather than have them play out exactly the same way regardless of how a particular situation came to pass.

Once a skirmish begins, you'll encounter new foes, such as four-legged creatures that can cloak themselves and ambush more fragile units (such as archers) that you figured were safe behind the front lines. New support units will also force you to make difficult decisions between targeting the enemy's bruisers or the guys making them even more imposing than they otherwise would be.

Even outside of battle, players will have new options to manage their caravan. Clansman seem to be of more use this time around, as they can be recruited as fighters. However, much like everything in Stoic's universe, there are drawbacks to this; these new warriors will no longer focus on collecting supplies, making your caravan's precious resources dwindle at a faster clip.

At a glance, it may not seem that too much has changed since The Banner Saga launched in early 2014, but upon closer inspection, the development team at Stoic appears to be making subtle, yet impactful changes to a blueprint that already worked in an effort to take its game to the next level.

Thanks Couch!