This isnt that likely of a scenario, because of the reasons I already stated, publishers have ZERO interest in actually forwarding the progress of game design and optimization. That requires talent, risk, and motivation. They are far happier to keep things exactly where they are, and use marketing to convince their brainwashed audience that crapping in their face is actually advancment, and anything else is backwards.
Oh sure most of them don't care about that. But some do. If you ever read those graphics white papers or whatever they're called, you do come across companies who innovated on the way to their goal. I believe realtime ambient occlusion was first used in Crysis, for example. I don't know if they entirely invented the algorithm or not but I think they were the first to get it working.
I also read one on how Valve invented a particular kind of improved motion blur for Portal 2.