Yes. Last week, the Vice President of Hardware Marketing for the PlayStation brand, John Koller, told news outlet GameSpot that the company plans to support the PlayStation 3 until 2015. While some may think this automatically means the PlayStation 4 will not see release until 2015, this is probably not the case.
Source: http://www.ps4playstation4.com/ps4-release-date-countdown-begins#ps4-news-september-30-2012
