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Yes.
From an interview with Sean Yates last week:
VeloNews: Can you explain Sky’s tactics on the climbs?
Sean Yates: On the main climbs or the points where it’s crucial, Sky sits at the front and rides a very high tempo. They’re all riding at threshold, and when you’ve got very good guys riding at threshold, about 450w, or in VAM, they’re climbing 1600 or 1700, so to attack, you’ve got to go 1900 for a short period of time, which means you go over your threshold, which means you pay for it.VN: So everyone is essentially going as fast as they can; what happens when you ‘pay for it?’
SY: You can only go over your threshold for 30 seconds or 1 minute, and then you have a big dip in power. So consequently, by the time when you attack, and the time you recover from that attack, you’re going slower. And when you have such a strong team, setting such a high tempo, it’s virtually impossible to attack.http://velonews.competitor.com/2016/07/tour-de-france/power-in-numbers-keeps-froome-in-yellow_415621
Regardless of any possible rule changes (and I can't see them losing the powermeters) it's hard to see past Froome for the next couple of years, as he's just so crazy strong.
Do Sky really rely on power meters as much as people say they do? Froome has claimed it's all exaggerated.