Kaz Hirai, head of Sony's Networked Products & Service division (leading their PlayStation department) is tipped as the favorite to take over the Prez role, which has been filled by Stringer since April 2009.
It's expected Stringer will stay on as Chairman and CEO, with only Hiroshi Yoshioka (head of TVs and cameras) offering any competition for Hirai. [Bloomberg via Kotaku]