Difficulty will be lower because some miners will find it hard to run their hardware bacuse of grid power bills and also the ASIC miners will be a lot cheaper, I still think the best time to invest in a ASIC miner is in a blood market.
Those who set up miners when BTC was at $15,000 years back did very well already, cheaper hardware and more BTC that ended up having better value. This is my own way.
It's a different time for mining now. Large corporations are buying lucrative contracts for electricity or building their own energy plants. More than 90% of mining costs will be electricity costs.
Large companies are also buying ASICs at big discounts.
Small miners have no chance in this business. It's easier for them to buy bitcoins than to mine them.