A recent Financial Times interview with Sony Interactive Entertainment president, Andrew House, has officially confirmed the rumored 4K & VR ready upgrade to the PS4, currently codenamed “PS4.5” or “Neo”. House explained that the upgraded console is intended to “sit alongside and complement” the original PS4 and that “All games will support the standard PS4 and we anticipate all or a very large majority of games will also support the high-end PS4.”
Nothing was said regarding price or an expected release date, and likely wont be for some time more since there is currently no intention to reveal the console at E3.
Source: Financial Times (Subscription required to view the article)