Really it depends on the court's decision on Auto Hop. If you can automatically skip through commercials, broadcasters may start putting massive amounts of advertising on live TV, using an "L-frame" technique like what you see here. Live TV in one corner, full-time advertising in the other three corners.
There's an article at TV News Check
that suggests that using this kind of advertising may be the only way for broadcasters to survive the coming of commercial-skipping technologies. It also may help broadcasters feel better about subscription-only services like Aereo that resell broadcast content without paying the content providers.
The fact is, with all the animated promos, television isn't that far off of this illustration already. It's not hard to see this kind of thing coming to broadcast. The article points out that there's no law against providing a busy, commercial-filled feed for on-air (and for pay-TV companies that allow commercial skipping) while sending a pristine, full-screen feed out to those companies that pay for it.
It sure could go this way. More likely, content providers and broadcasters will simply put anti-ad-skipping provisions in their contracts, or find other ways to get revenue that are less annoying to viewers. Filling the screen with ads just seems spiteful and providers who do this will probably see their viewership drop, making this a losing proposition.