I have also experienced the same thing as you have experienced, at first I was sincere if my coins were ultimately worthless and useless, but my friend told me that if old coins could be swapped into new coins, I also looked for this information through my official social media coin, like telegram and twitter , then finally I managed to do the swap.
But, honestly I have missed lots of swaps in my crypto life which include bitcoinwhite and sreamity. I also holding PCL and JBN but these tokens swapping was auto process like they have sent new tokens to my ethereum addy itself hence I did not gone for any hassles (PCL asked me to follow some steps as it was about changing new contract addy).