I think you're dreaming if you think it will be back paid to September. They know we have to give 3 months notice, so for us in the UAE Centre the increases start from the 1st of Jan, 3 months after the announcement.
And I think Serco are dreaming if they think a currency revaluation or currency depeg will happen. The UAE have stated categorically again and again the peg is here to stay, and I for one think they will stick to that.
Payrises will come when the the lack of bums on seats seriously delays some serious airlines aircraft. Once it starts hitting the correct people hard enough in the hip pocket they will quite gladly pay whatever is needed to get things moving again.