It's already difficult enough for humans to understand humans, so I wouldn't worry too much about this. What I do expect is that the least sophisticated parts of jobs like conversion optimisation will eventually become largely automated. Humans would still input the constraints, but the machine generates the inputs for a multivariate test, measures results, decides which variant performs best and rolls it out to all users.
Think The Grid [1] mashed up with Multi-armed Bandid Experiments [2]
[2] http://analytics.blogspot.nl/2013/01/multi-armed-bandit-expe...