787s will happen, its the only widebody that is currently on offer from Boeing that would fit. The A330s are too big, the 767 went out of Pax production years ago and the 777-8/9X are also too big, used 777-200ERs are worn out and ready to be scrapped.

The question is where we get 787s from. If we ordered them new we wouldn't get them until the mid 2030s if we ordered them NOW.