Some industrial shipping docks can be managed by a very small crew. I think this is the metaphor for what's going to happen to a lot of industries.
We need waste as much as we need investment. The trick is to find the value in between. I think the sweet spot will be augmenting work, not necessarily optimizing it.
The two things that matter, housing and food, are way way up.
Housing is weird because it just sucks up whatever leftover money people have. We all have to eventually spend all our income on something so it's impossible for everything to get cheaper in the long term. That doesn't mean we won't be able to afford stuff, just that we'll spend all our money just like we always have done.
Food would be encheapened by labour-free production just like products.