From Sony's release outlining the company's new strategy:
"Digital Imaging - Sony is reinforcing its development of image sensors, signal processing technologies, lenses and other key digital imaging technologies in which it excels, and plans to leverage these technologies in both its consumer products (such as compact digital still cameras, digital video cameras and interchangeable lens digital cameras) and broadcast and professional products (such as professional use cameras and security cameras) in order to further strengthen and differentiate Sony' overall product line. The Company also plans to extend the use of these key technologies across a wide range of business applications, from security to medical, to further expand the scope of its digital imaging business. Sony will target total sales of 1.5 trillion yen and double-digit operating income margin from the consumer, professional and image sensor businesses by FY14."
Seems that those of us using Sony cameras don't need to be concerned about Sony walking away from this part of their business.