Bitcoins are finite.
Blockspace (timespace) is not.
This implies that transaction fees (denominated in sats) will perpetually trend downwards eventually.
Discussion
Is this like a bell curve distribution? Fee vs. time. When do you suspect the curve will peak?♾️/21M
In purchasing power, yes. It will be too expensive for most people to use.
There's literally nothing to suggest that fees will increase in Bitcoin terms though.
People running around consolidating UTxOs while fees are high are just locking in the cost of their mistake forever.