It seems odd to me that the low cost airline Air Asia X are going to be operating everybody's favourite sardine can widebody in a comfy 9 abreast configuration when that vast majority of legacy carriers are now 10 abreast. Surely this is a case of deja vu with them flying 8 abreast A340's on the route previously, the lack of commonality with the rest of the fleet combined with the large number of seats that need to be filled surely can't all be made up for by the superior CASM when comparing to the A340's? (IMHO)
It will be good to see them back in Europe, although I remain cynical an A330-900 could fly KUL-LGW with a full load even in a less dense configuration that what they currently use. I suspect BKK-LGW would be more realistic range wise. Will be interesting to see what happens anyhow.