After we enter recession in full, somewhere after this winter we are probably hitting 4-7K again.
Asic miners will be cheaper then ever and GPU mining long gone this time, if that will be a thing again remain to see, I do not expect to see so big price jump to use GPU on any coins currently on the market.
GPU mining will not go anywhere, there are always new coins to shift your hashrate into with the hardware but profitability will vary with time.
Might now be as profitable as it was this cycle again ever again though.New hardware is always be more efficient and markets get saturated with new entrants and it will squeeze out all those who can't afford it. Driving costs up & profitability down.
It will reach equilibrium with time but it wall also mean only hobbyists are into it or full scale industrialists.
There will not be room for small ventures much longer unless you have other incomes to subsidize your mining costs with electricity etc from elsewhere.