One is the shift from industry jobs to service jobs.
Did you know that globally, farming has been the most common profession since basically the dawn of civilization up until about a decade ago? [1] Now it's service jobs.
Humans helping other humans, this is a type of jobs that will never go away because humans have qualities that machines can never possess regardless of if they pass Turing tests or not.
The second is the bleeding edge of innovation and super-brands that have shorter and shorter lifespans. The share of the economy belonging to the mega-corps is decreasing. Smaller and faster is the way of the future. This is the era of the startup economy.
So there you have it: services, super-brands and startups.
That's what the economy will look like the next 50 years. Heck, it's what it looks like today! At least the part that's working.
[1] http://johnhawks.net/weblog/topics/social/farming_bypassed_a...