is it better to keep my coin CJ , does it have a future or I change it into the new currency Surge
If the dev leave CJ delisted and died, i think it is unwise to swap it to surge because once it is dumped, he will leave it again and create another coin. Remember that CJ is already on its lowest price even if surge has a low supply, the price would still drop because it is already on its peak and you will lose more. If he cannot develop CJ, it means he cannot develop other coins as well. Remember that it is the same person. Just an opinion, your bitcoin your decision.
I have already spelled out what is the need for Surge and regarding optional Swap
All those who have swapped CJ are sent Surge ... We are developing a site like Bitly and will be announcing soon