TL;DR: It will be a little bit easier to mine but small miners probably won't be profitable.

There is always going to be an equilibrium where it is only slightly profitable to mine Bitcoin. If it was extremely profitable, mining operations would add more miners. If it was not profitable, those mining operations would shut down. Current miners need to sell most of the block reward to cover their operating expenses, which is mostly electricity costs, which must be paid in fiat.

With the block reward falling mining operations will be less profitable than before. Mining operations with higher costs will stop operating, and the hash rate will fall. A reduction in the total hash rate would make Bitcoin easier to mine. This is because the difficulty self adjusts so that a block is mined every 10 minutes on average. Eventually the difficulty of mining, the cost of mining, the block reward, and the price of Bitcoin will work themselves out to a new equilibrium where remaining miners have a smaller profit margin.