I wouldn't be so sure, in another perspective, as Sony and Microsoft can release the eighth generation consoles - PS4, X720 with the lowest prices, but also release performance hardware to upgrade the capability of playing games at the best graphical way possible.
What I mean is that they release the default console models, all bearing similar graphical capabilities. Then, they can put their own upgradeable hardware for sale.
Maybe, doing so, the problem of limiting the games due to disk space, and console hardware limitations, can be put to an end.^_^