In terms of EK, I believe its the default schedule loaded for W15 at the moment.
The A330's are being phased out, so unlikely to be back in the UK.
With EY adding capacity in the form of more B77W's, Turkish going 3 daily, Qatar adding 4 more flights, Cathay starting, Saudi Airlines adding flights and Hainan to Beijing to be announced by February, one wonders what EK's reaction to this will be. They have not been shrinking violets in the past, and hover been scared of competition.
Not only that, but, loads of 90% and more, its certainly an interesting time for EK at MAN.