These two do not look like your average polar explorers. They give off a villainous vibe, tbh.
The combination of the high-rises on a small island that Maya drew, refugees and exile being mentioned and these guys being so excited to see land makes me wonder if Maya's homeland is strained for resourses like land or food somehow and the reason for them to invade Aki's polar continent will not be oil as people have suggested earlier, but something more desperate. It could even be that they are having the same trouble with black blood somehow.
I was wondering how an industrial society like Maya could never interact with the people in this cold region - I'm assuming Ilva has been destroying all previous explorers's ships just like how it attacked Maya's ship.
I took me way too long to realise that Maya has escaped from a different ship and not the Boreal... I was even confused how it kept blaring the horn if it was supposedly destroyed, gah.
I think what gives some credence to the new guys being villains is Maya's reaction to seeing the Boreal. At first I thought that she has hesitated to fire the signal flare because it would immediately alert the bear, but now I think that a part of it could have been that the people on the Boreal are the people her ship was trying to run away from in the first place.