Looks like you're going on the Spirit Alaska cruise in late July/early Aug? If the price drops before your final payment, which is 75 days out, Carnival will notifiy your TA, who will notify you. If you booked a guarantee cabin, you might get an upgrade. If you booked a specific cabin assignment, you probably won't. Start contacting your TA a couple of weeks before your final payment is due to see about a price drop. If you're looking for an upgrade, then you should have a GTY cabin. Ship credit and post-final payment upgrades are at the discretion of Carnival, if the price drops after you've made final payment. Your TA should tell you all of this.