So we have in the big shifts:

Agriculture workers, became industry workers. (Mechanized agriculture).

Industry workers, became service and white collar workers. (Automatization).

I don't see a sector for white collar workers to shift to now. Even more service workers?

There is room in the serf and capitalist classes though. Hopefully we end up in the later rather than former.

But there is a need for political reform to open up the later I guess.

3 day work week and so on the lower the lowering pressure on wages. Progressive corp. tax? But I don't see that happening in the US.