If fuel costs keep rising (as they are predicted to do), I expect air fares to increase too. I would not doubt that the cheapest prices you are going to be able to get are the current prices. I am assuming that for the near future there will be nothing but air fare increases unless fuel costs drop or stabilize. JMHO.
http://www.farecompare.com/news/flights-expensive-summer-airfare/
From the article:"We are nearing the historical “sweet spot” for summer travelers looking to score a deal on domestic tickets who shop in earnest about 3-and-a-half months before departure — the time frame when airlines tend to start offering up some cheaper seats in order gauge demand in comparison to their historical booking models.
It is likely that early bird shoppers for summer airfares will be shell-shocked when getting quotes. Waiting may be their only option.
With the volatility of jet fuel prices and the reticence of airlines to increase capacity coupled with firming demand, it’s not hard to imagine a summer of some the highest airline ticket prices in years."