I don't think it will happen. I think we will get clarity with an announcement next week. Alongside swimming pools and indoor workout gyms for adults etc.
In WAG compulsory pathway girls will still all be under 14, but those who have made it out the other side to British Champs won't be.
The only bit where I saw age mentioned was in reassuring parents about the low risks in holiday clubs etc. Throughout we've been told that children tend to suffer less badly, but there has to be some point where they stop being children and become adult. A lot of the studies I have seen look at children under 14 as one classification so that is probably why they mentioned that age group to reassure parents.
But who knows anything yet?!