This privilege will continue to exist, but it will only ever award the Rare Premium tier. No free options will be made available for the higher tiers. If you have free Premium and want to purchase a higher tier to further support the site, or secure yourself a Legendary gift, you can proceed to make your purchase. A reminder that you have free Rare Premium will display, but you can continue if you wish. If in the future your plan/subscription expires, you will revert back to the free Rare Premium tier.