Not really, a site can just proxy ad content through their servers. How can an ad-blocking service tell the difference between an image needed for the site and an image that's an advertisement?
It will be more challenging but not a big issue. Ads will still contain signals they're an ad (I'm reminded of banner ads on the Web 20 years ago).
Back hauling traffic through the site may happen, however that's a huge latency penalty and also will reduce the amount of data leakage. Networks will no longer have carte Blanche access to end users. Also worth noting is that it increases the complexity of the technical implementation from 'drop in this code' to 'get your backend team to change your architecture in this way'.
Back hauling traffic through the site may happen, however that's a huge latency penalty and also will reduce the amount of data leakage. Networks will no longer have carte Blanche access to end users. Also worth noting is that it increases the complexity of the technical implementation from 'drop in this code' to 'get your backend team to change your architecture in this way'.