It would definitely help out the high cost of shipping from the lower 48, especially big items like tires and hazardous materials. The Port in Anchorage is about to be condemned so the pressure is higher for air freight.
But what i see that might be promising is an Alaska Express tour train, a North America fersion of the Orient Express, might be a 4 or 5 day trip but if it has luxurious sleeping, dining and entertainment it would sell out.
Or best yet put a steam engine up front with a diesel or two as backup. Steam enthusiasts would go nuts.
Sign me up!