Nexus 5 (Rumored):

Nexus 5: 

Hardware specs: 

Screen: 5-inch 1080p display.
Processor: Snapdragon 600 CPU processor.
Battery: 3,140mAh. 
RAM: 2.5 or 3GB.
Camera: 9MP (CCD Nikon)

OR 

Screen: 5.2-inch IPS display.
Battery: 2,900mAh. 
RAM: 3GB. 
Processor: Qualcomm Snapdragon 800 at 2.1GHz.
Camera: 16MP.