Coin specs aside from the 40% POS?
8MB block size, 120 sec block time, 50 days of PoW so the consensus method should now be fully Proof of Stake. These details are answered in the droxdeveloper github site.
Airdrop still alive? Where this coins trading?
Droxne trades on Cryptopia, see the network page on our website for direct links
http://droxne.net/network.html. The airdrops ended months ago. For now the dev team is focused on building out the platform: website, white paper, games integration, etc.