Jewel out of NYC very popular. Been on it three times. Very very rarely will 4 passengers in an inside cabin get upgraded to a balcony cabin. As I say, those ships are booked solid usually by departure and if any upgrading happens, normally, it will be a cabin for two inside to an outside or outside maybe I say maybe to a balcony. Do not count your chickens yet. Also, travel agent asked you for money to upgrade?? And, then did not. Odd. I have been upgraded in past but never had to pay for it.