Wireless is probably good enough. Wired is still much faster, more reliable, and has lower latency, but if the cost is unaffordable, none of that is essential.
I expect the future is that rural moves to mostly wireless and inner city areas continue to be connected to fiber.
The trend I've seen is the opposite: it's much easier to dig trenches and install cables in suburban/rural locations than it is in a densely packed city, so they often have better wired internet.
It's still more expensive because you are digging 100km of easy trenches to connect a thousand people vs 1km of complex trench to connect tens of thousands.
In Australia we have mostly failed to provide good wired internet to rural areas so they are moving to starlink while the cities are largely connected to fiber now.
I expect the future is that rural moves to mostly wireless and inner city areas continue to be connected to fiber.