PlayStation 4.5 rumours: is this the age of upgradeable games consoles?

Game developers say Sony is readying a new version of PlayStation 4 with 4K compatibility and more processing power. If it's true, is it a good idea?

On Friday afternoon, video game news site Kotaku dropped a fascinating story. Sony is rumoured to be working on an upgraded version of PlayStation 4 complete with support for the emerging 4K resolution, and more processing power to cope with the demands of virtual reality.

Kotaku cited unnamed developers as the source of its report, and claims to have overheard discussions between programmers about the new "PlayStation 4.5" during the Game Developers Conference in San Francisco last week (where the hardware was allegedly being revealed in closed demos to key studios). It's not clear whether the new format is an upgrade that attaches to the existing PS4 or a completely new replacement, but Sony has, of course, said that it won't comment on rumours and speculation.