Room rates don't increase during the year, only when the new rates and packages are released each summer, usually in July. All-Star Movies will most likely be excluded from the promo, as it has the last two years. There should be room at the other All-Stars and Pop for at least a few weeks, but some room categories may book up very quickly or be excluded all together. If you are wanting to take advantage of the Disney Visa FD promo, you have to call and wait on the phone either way, as the DV FD discount can not be make or added on the website. If you are booking the General Public FD promo, it makes absolutely no difference if you call and add the discount or book a new reservation - other than you can expect to wait a long time to add the discount, as opposed to making a new reservation on line. Also, if you do cancel, you will not get an instant refund, it can take up to two billing cycles, or two months for your credit card to reflect the refund.