Corrinne Yu's LinkedIn profile indicates that she has moved from her position as Principal Engine Architect at Microsoft's Halo 4 developer, 343 Industries, to Uncharted developer Naughty Dog.
At this time we don't know what project she is working, but her position is listed as "Graphics Coding on PS4." However, during the launch event for Sony's new console Naughty Dog announced that it's currently developing Uncharted 4, a PlayStation 4 exclusive.