My understanding is that Canada, USA, Russia, Sweden, Finland and Czech Republic are effectively safe and qualified already.
Switzerland can be overtaken by Latvia if LAT finish 5 spots higher than SUI.... not impossible but I expect SUI to show up in a big way this year to clinch that spot.
LAT can overtake SVK if they finish 4 places ahead of SVK. This isn't quite so impossible to imagine.
While NOR, BLR and FRA can technically still overtake SVK, I'm not counting chances here. They will be fighting for home ice advantage in the final qualification tournaments.