According to the Financial Times, Sony CEO Howard Stringer is facing serious resistance from the 'old guard' in Japan to fix (or save, depending on your perspective) the company. Certainly one of the more interesting pieces coming out of the alleged plan is Stringer's goal to shift Sony's focus from hardware to software. If true, the PlayStation brand, along with Sony Computer Entertainment, would presumably be the main benefactors of such an upheaval.
Source - Sony to announce restructuring details soon: FT (Reuters)
Source - Stringer battles Sony 'old guard' ... (FT.com, registration required)