What people seem to ignore is how Bitcoin's transactions on-chain didn't exactly go down because of less interest, but the fact services around the globe started to batch them. If you batch transactions, the number of transactions logically declines, but the value that continues to be transferred from one place to another remained the same, and has gotten even a healthy boost lately.

If you take that into consideration, then it's clear that smarter utilization of block space is what lead to lower fees. Schnorr signatures will make sure even more existing block space becomes available for use. I hope it's going to be released this year, but I'm not going to wait for it. If it happens this year, then fine, if not, then it's fine too.

Eventually we'll see the network congestion come back due to the organic growth we go through, and that will motivate services to adopt Segwit and Lightning. Good times are ahead.