The times are changing!

I don't it'll be a noticeable shift, merely for the fact going from a HF to WM would set your career back quite a bit. Not saying your career is ruined, but advisors built their books through decades of work, having an ex-Citadel monkey isn't really a value add to their team. Like any career, people want either two things 1) Someone with direct experience or 2) someone willing to learn that experience with an impressive background. Since that ex-Citadel monkey doesn't have actual WM experience, the only thing they can leverage is their background and learn as much as possible, which would result in a pay cut. Below FA (Financial Advisor), you really don't make anywhere near what people in IB/ER/PE make, let alone at a hedge fund. So why would a HF analyst, who was clearing at the worst $150k base, go to a job that's gonna pay them ~90k with a literal fraction of their usual bonus? If I were a HF monkey I would just go corporate. Better pay, similar or better upside in career trajectory, you can get equity, and WLB is better (not WM better where you leave at 5 on the dot at some places). 

I could see family office types really boom, but imo that's not really WM or even Private WM (PWM), it has its own distinction.