So what's the answer?
Segwit adoption is still at ~40% and has been stagnant for months
Lightning network is still not mainstream, with just around 1000 BTC in total capacity and the average channel having just 0.0080 BTC
Increasing block size at this point seems impossible just because it's been rejected for so long - why would it change now if not when there were $40 fees?
So... what else is there? Is something being worked on that I don't know about?