With the recent halving of block rewards, the incentive will be lower than previous for miner. On the other hand, the cost for them will still be same which may not be profitable for a while (I'm not sure about this). If it is true, is it possible that some miners will just leave mining for a while until they get back in a equilibrium or in profit? What fo you think?
Maybe that would happen, or maybe it will not. The price has been going up recently after the halving, and if it should increase, then the miners will continue with their mining and be able to cover up for their expenses.
When there will be a problem is if the price should keep declining instead of increasing, then a lot of miners will have to quit and wait till things get better before they will get back. And if these miners should drop out, it might have some effect on the cryptocurrency market and the price might fall. I don't really hope for that to happen.