I know some people here have a gut reactions of "no" to that but lets take a moment to consider what would happen if that was the case.
You would see far fewer or massively pointless content trimmed from the game rather then having it stick around and stink up the game. You would have a wow without AP (in all its forms), corruption, azerite (everything about the system from resource to talents), soul ash/cinders, warfronts, islands, choreghast, covenants, and a host of other terrible choices veteran players saw as the cluster fuck they were the second they were proposed.
Think about all the extra dungeons, and even raids we could get if blizzard had used the resources they wasted in those pointless projects if they turned to their best to lead them. I am personally thinking top 100 raiders and 2600+ ranked pvpers would be the best pool to draw from.
We have seen how blizzard designs the game. I can only see them going to the best of their playerbase as an improvement.