think about it if you were a miner, and have learnt that you can charge XXX for transaction why would you be happy to again charge just one X?
It is certain the more popular coins will increase costs to catch up with bitcoin, as opposed to bitcoin lowering .
Developers are already being pressured to behave in ways that I dare not repeat.
Why you think of that ? Bitcoin fees will reduced if bitcoin price reduced too. You made this assumption when bitcoin price at the peak.
Look at the market price of bitcoin now, it is on the bottom, so the tx fee. I am not a miner, but if i want to mining bitcoin, i think i will need to buy the latest asic to gain btc more, not by increasing the fee.