Regarding the whole co-ed thing, now Winchester has gone co-ed and Westminster announced co-ed all the way through in the near future, it is just a matter of time for Eton to announce their plans. I bet it will probably start with really bright state school girls into Sixth Form as that is their king of thing. The New Provost will want to make his mark. And they won’t want to lose out to their 2 competitors.
They have plenty of cash and lands to build girls boarding houses as well.