Cryptopia has always had a lack of integrity, so I highly doubt anyone will get any coins back. It will likely not happen before the end of 2019 if ever.
Basically, if you want to buy or sell Guncoin, you need to use SouthExchange for the the near future at least.
I agree that SouthExchange is probably our best bet for now, haven't used Enmanet much, but they did respond well to an issue I had.
Cryptopia....I have always had good dealings with them, but yeah....I don't expect any coins back for a while, but I do believe that will happen.