I'm sure they won't be happy about the competition, but I don't think that will be a deterring factor. After all, CX, BA, and QF all compete on the LHR-HKG route. CX and QF compete on Australia routes. If competition were the main factor in determining alliances, I doubt there would be any alliances. Nah, most likely what will happen if 9W joins OW is that, unless we fly premium, we'd stick to our regular carrier anyway because that's the only way to get full mileage.