I think the number is around 1,000 in total. Those will be split between a few groups, not least those currently on Silver (who get the choice of Gold or Gold+), including matchday members. As the release says, if they are oversubscribed, it will go on the points of the adult.
I'll add to this in a moment, but I'm against the Gold+ product due to the £150 premium - which we achieved some movement on. Particularly given a lack of new "normal" season tickets. I did make that point, but I'm sorry any of you who want a form of season ticket will have to pay that additional amount.