Lol Taraz, maybe you're over thinking this one. I doubt work will be substituted in the future, despite all we hear. It will be disaster if there are no tangible alternatives to a system of work and it phases out. Then again, I doubt it ever will
For many in this world, whether they realise it or not, work provides a large proportion of their feelings of meaning and purpose as most feel that they are working towards something.
This is why I feel nothing significant will change. What we do is basically who we are
Assuming governments and corporations are the likely organisation and foundation builders in this, what do you think will happen? :D
An alternate path and the one I prefer is where work is largely no longer required and essentially, we can do what we want as humans come to understand that freedom and flourishing could be our natural state of existence. I count the chances of this happening fairly slim in the first rounds. Like here, most of the problems would exist if distribution was better but, greed is also a human trait and the enlightenment position of just enough is blockaded by the a scarcity mindset and fear of loss of whatever one is attached to.