I don't think it's possible as of now. Considering that dev regularly shows up and latest posts were concerning CoinsMarkets scamming everyone, it would be safe to assume he had all his coins there and now have absolutely no incentive to do anything with this coin. Am I right dev? If so, do not be discouraged, a lot of us never hold coins on the exchanges, we can donate you a hefty amount if you continue working on this one...