sure they will, all it takes is automating running wire and making connections. when the cost is low enough to do so, it will happen.
drones are already used to somewhat automate line inspection, etc.
imo, there are plenty of companies attempting to automate traditional trade jobs, and increasing automation for knowledge roles in those companies will accelerate those initiatives.
not commercially, but i worked as a residential electrician and contractor for half a decade, if we are doing ad hominems
Can't imagine where I'd even start with automating the work of an electrician. Even something as basic as robots grabbing regular objects is intractable right now, much less handling wire.
You'd have to have a project of massive scale that's designed specifically to aid automation and then have a fairly straightforward robot doing the work.
"Send a robot to arbitrary location X and do arbitrary electrician job Z" is fantasy land.
If datacenter demand doesn't evaporate, mega scale datacenters sound like the most probable candidates for this.
In such a module-based construction you can optimize layout and the fabrication sequence so that the labor is minimized and simplified - like for example you'd be simply laying down wire instead of running it.
Thus the modules can be fabricated where the labor is cheap and plentiful and with high degree of robots usage while only final assembly would require high cost labor at the target location.
Anyway, that demonstrates another way of datacenters getting modularized. The point is that the actual volume of datacenters to be produced calls for the mass production assembly line style. The one-off custom built approach becomes unsustainable.
installation systems are currently made for humans, so one has to do some fantasizing to see a future where installs can be done completely by non-human agents or by automated orchestration of low skill human agents.
The only way to really automate electrical installation is at the source (ha), when the construction materials are manufactured. I can imagine some god awful system of snap-together conduit prefilled with conductor, and junction boxes with monster dip switches to replace manual connections. It will cost 10x the price of standard materials, and it will be horribly wastful, but the labour costs will be negligible if it can be done by a robot or unskilled labourer.