I can't understand why anyone think EI would go for Boeings. They have just completed a move to an all-Airbus fleet, with easy transtion for flight and cabin crews from any one aircraft type to the next, and common flight crew ratings for a lot of them. Throwing Boeings in the fleet would only undermine that, possibly blow any price deal they have with Airbus, and add massive additional costs in preparing crews to fly them. At this point in time, Boeings and EI seem like a totally illogical option to me.