--snip--
It's also possible some miner continue mining at loss (at current exchange rate), but speculating BTC price will rise so they can turn loss into profit.
However, for how long can they continue? Will they loan some money to use for their cashflow? It will certainly not be sustainable if there are no assurances of a stable reward at every block mined. Asic manufacturers might also begin to think twice about their own business because of the insufficient assurances on the profitability of their customers.
We don't know, it heavily depends on how much risk they're willing to take or amount of reserved money. Hopefully those miner don't meet same fate with Chia's miner[1].