Their most valuable dev left them for zclassic. That's why zclassic price kept increasing from 4.30 to 5.20 dollar in like 10hours. But because of ddos and bittrex it dropped again to regular price. I've read somewhere that two new guys joined zclassic, i believe on tweeter. They also dumped their Zen stack that why it had big drop from 12 to like 9
I watch Zclassic price for a long time and around 1-2 weeks ago there was someone who tried very hard to push price up, he tried consistently for like a week and he even succeeded for a few days when price reached like 0.00235 but then it when down so fast, even huge buy wall with 35-40 btc didn't help. So i think that miners/holders/traders have a decent supply of ZCL and some of them use every chance to sell it when price tries to climb up a little so it will be very difficult for ZCL go back and stay on level 0.003. As you all probably noticed coins concept isn't so popular recently, now on trending smart contracts, platforms, big project with real show cases etc..
ZCL is a good coin but there are at least few other coins that have almost the same functionality. It becomes very competitive niche.