What might the miners do at this junction?
Sure, they still get transaction fees. Would those escalate?
Might there be a reason to move to non-ASIC hardware?
Or a reason to change the reward algorithm?
It is still far from 2040, peoples still mining bitcoin and get a decent reward in bitcoin.
Later, bitcoin mining reward will be lower than now and resulting the price to rising in the market.
I don't think bitcoin developer and community want to change their algorithm because they will bring much loss to ASIC companies.