I want to suggest something, and I want to see all your opinions. Can we make mining ZenCash possible only for node operators, both secure and super nodes, at least until we fork from ASICs threat. I dont know if this is technically even possible, but lets discuss it here.
In case of an attack, team can just shut down/ban the node that is trying to attack the network, and we are safe. Its similar to PoS but the mining would still depend on your hashrate not on how much stake you have and you just had to do it using a node.
Yes this would make Zen a little centralized, but entry point for secure node is cheap atm, and if you do care about ZenCash to mine it you probably have one already.
I am afraid if we dont do anything, what is to prevent another attack ?