this is where things are headed, although it is several years (perhaps even a decade) away from becoming the norm
the tech will almost certainly be used to provide "backwards compatibility" to one or more of the future consoles
on the one hand, when it does get to the level of acceptable performance, there will be more people gaming than ever before (when you can just pair a controller with your "smart" TV and start playing instantly i'd imagine lots of folks will at least try it), so that busts the market wide open for smaller console games and riskier projects
on the other hand, it introduces a whole new set of tech problems and consumer worries