[abestic9]

I would expect to see ad/tracker blocking technology to advance as the users encounter more invasive types of tracking. But what if the server requires that information as part of a request to serve content in it's response?

This will always be a cat and mouse issue, and unfortunately right now most of the authority is on the server side. The data-driven web that TimBL envisions is just not profitable enough and content has to be heavily intertwined with distractions and trackers to monetise us cattle. See RSS.