Difficulty will drop in two weeks. I'm not sure anyone want to mine for two weeks without profit.
There are still some miners whose electric cost is 0, because they are stealing energy powers. I think if BTC price is not dropping sharply, they will mine.
or those miners who are supplied by energy they make themselves and dont have to pay.
If there are such miners, then yes. But are there many of them? Isn't there then a danger that the chain will be attacked?
Yes, there will be before whales dump their core coin. They will have to rent hashrate to make their deposite transations to exchanges be comfirmed, or they will suffer the lost.
