How about £299 for "Priority season tickets" giving full admission plus any additional perks such as free JPT entry, priority cup tickets etc to safeguard the clubs income. Then offer voucher books for a reduced rate of £100, or £150 starting with 10 tickets to matches of the holders choosing. As each sales milestone is passed, the number of voucher in the book increases up to the target of 7000 when a full season is awarded minus any perks of the priority pass. To keep the deal sweet for the original full season purchasers, should the end goal be reached, their ticket would become a 2 year ticket, making it £149.50 per season.