They already know what the pay review consists of, they couldn't announce a profit target if they don't know overheads and outgoings.
I hope, really hope, there is another genuine reason why they are withholding the news - if it's simply to prevent a further drop in morale during the runway closure then it's an incredibly poor way to behave, and disrespectful to the employees.
From memory, the last time we had a pay rise + step that matched inflation was a few years before the increase in the productivity threshold. So that must be around 5 years of what is essentially pay cuts, whilst the company continues to make record profits.
Does anyone have to hand the actual year we received a tangible pay rise?