We have registered for Poolperks and if you are a delegator to one of the ADAvault pools you can claim a commemorative Alonzo era certified delegator NFT.
We plan to issue an NFT for each transition (for example Basho and Voltaire). And the intention is that delegators who collect them all and stay delegating with one of the pools will be rewarded.
Our current thinking is either some form of fees rebate and an opportunity to win some multiple of pool fees. They will be available to claim until the end of September 2021.