I think this will be the last season
Once they start on the road, and all the contruction starts - their "isolated" way of life will be over & the show will lose it's appeal (I hope they tucked their TV money away!)
Whether you believe it's a canned show or not, it'll be hard to maintain the "isolated & living on their wits & skills" concept. It appears that most of the town is filled with Alaskan natives (& men married to natives) - unless things have changed, Alaska provides $$ to all natives from the oil money annually. They have money if they pay $7 a gallon for gas & have all that heavy equipment to haul things around. Enjoy the show folks, but be smart & think some of the things through. All the tourists, money, construction jobs & women will flood into town. Those who want to keep living off the land & away from civilization will have to move. It will just become another "Alaska, the Last Frontier" with the phony, actually rich family pretending to depend on that moose to feed the family or they'll starve.