Ive booked a few sites in Wales early July so figures crossed, but not all that hopeful. Booked Cornwall from next week for three weeks, and that's cancelled and bookings moved to 2021
The Caravan Club hopes to open some sites in July on a roll out basis. There seems to be some issues around sites with communal facilities regarding ability to keep them sanitised and social distancing.
England will move to open some sites in July, but Wales it seems is not due to open until September, but that is to be reviewed regularly.