Nobody can tell you what the price will be.
Airline prices go up and down on an almost daily, or even hourly, basis depending on how many seats have been sold on the plane.
You could phone up in the morning and be told one price, then phone up in the afternoon and it may be �100 or �200 more.
One thing I do know is that the earlier you buy tickets the cheaper it will be. Leave it late to buy your tickets and you will pay through the nose (because the airlines know you are desperate if you are booking late).
Buy them NOW.