So is it a good news or a bad news? It is harder to obtain bitcoins, thus probably new investors would buy them, the price should raise.

However many people ordered ASICs long ago. When they receive the hardware, they will run it. Difficulty adjustment has some lag too.

Due to lags in ASIC delivery, difficulty adjustments and price fluctuations, it is quite possible that at some point mining won't be profitable and most miners will switch off their mining hardware after difficulty adjustment. So we'll need to wait hours for block to be found and months for the next difficulty adjustments. Higher confirmation time will move the bitcoin price down and make the situation even worse.

Is this scenario probable?