Everything is just temporarily. If you look at the mempool charts, it's perfectly visible that these spam attacks are being displayed in waves - they pop up, slow down for a while, pop up again, slow down again, etc. In that regard, the fees will continue to bounce up and down - never think that they are gone just because the fees have decreased. As long as whatever entity thinks it can justify blowing money like water to choke the network with rubbish transactions, they will continue to do this. Most of us are well aware of how deep the pockets of those behind Bitcoin Cash are - it's a shame that they account for such a large percentage of the total network hashrate on the legacy chain...