Airlines have cut back their schedules, so there are fewer seats to fill. Demand is picking up, so prices today mostly reflect the supply and demand dynamic. Rising fuel costs also are a significant factor in today's airfare prices.
The likelihood that fares may go down is dependent on many different factors, including the time of year, time of week and even time of day that you are flying (flights at peak times of the year, on Friday/Saturday/Sunday, early a.m. to Orlando and late p.m. home generally will have higher demand), if you want nonstops or are willing to fly with a connection, competition at your airport, etc. The more flexible you can be on one or more of those things the higher the probability that you will be able to take advantage of a future fare sale/reduction. If you have to have that early morning nonstop to MCO on the Saturday before Christmas (just a worst-case scenario example), you probably aren't going to see anything but an upward trend in prices.
The other thing to consider is your risk tolerance, since if you buy now or wait you are gambling one way or another. A few airlines (SWA and JetBlue, I think) do allow you to get a credit if prices go down after you book and don't charge a penalty. Most of the airlines will charge you around $150 per ticket to change, however, so you'll need a big price drop to make it worthwhile.