So are the current ad models. That's why ad networks have heuristics to detect click patterns and time spent on the advertisers page. The former is easy to replicate since it's all done server side anyway. The latter would require a less information dense page with a "read more" link to approximate what's currently done in JS et all. Not a perfect solution by any means, but it wouldn't be the worst thing in the world if the standard and banners were replaced with more tailored solutions like affiliate links (eg blogs about building tools would link to online stores. Blogs about software could link to online bookstores selling books on that software).

At the end of the day if someone wants to promote a product and someone else wants to make money promoting products then there will be an advertisement model that will spring up