There was an article today in the Times, to the effect that if FR walks away from EI, EY is ready to step in. EY, incidentally, is also about to buy a significant shareholding in Jet Airways of India.
I mention this because EY, as an investor, will presumably be very interested in encouraging EY to expand. What about the possibility of joint fleet purchasing and other economies of scale by all four airlines under the EY umbrella (EY, 9W, AB, EI); together this carriers would have a sizeable requirement for A320NEO/737MAX and A350/787 aircraft.
AB has a bit of a mish-mash of a fleet, with both A320s and 737s. I wonder if EY might "encourage" AB to co-operate closely with EI, even encourage joint management of the two, under EI. Just throwing it out there ...