Anybody who can tell you what loads and pricing will ultimately be for flights a year out, is worth $ Millions to an air carrier.

It's absolutely impossible to predict a year out. Generally speaking, lower fares don't kick in until much, much later because people who book this far out tend to be willing to pay for certainty, e.g., they can only travel on school vacation week.

If you need the certainty of space, book now. Otherwise, wait.