>We may finally get the promise of the 50's and 60's - less work and more leisure time thanks to technical advancements.
We likely won't, because no one with the power to do so seems to be planning on making that future a reality. Automation exists to allow business owners to reap the benefits of labor without the burden of providing a living to human employees, not to free humans from the necessity of labor.
Barring some global socialist revolution and something like basic income, people made redundant by automation will still need jobs to survive, but automation means there will simply be fewer jobs available. The jobs that are available will be menial, low paying and high risk, because human labor will be practically worthless, as anything of value will already be done by machines.
Unfortunately, history shows that for the vast majority of people, it rarely works out the way you're looking forward to. For some, yes - for the well off and well connected, automation may lead to some sort of Eloi fantasy of intellectual opportunity and luxury. But everyone else is going to be left growing potatoes in the sewers.
Edit: obviously, there will need to be some people with the means to actually buy the goods that the robots will be making, but the efficiency of an automated economy means there needs to be far fewer such people, and they can be distributed globally.