After huge success of Nexus 4 from LG, the rumors claim that the successor Nexus 5 will be again manufactured by LG and will be based on the upcoming Optimus G2 which appeared in leaked pictures recently.
Recently live pictures and specs of the upcoming Optimus G2 were leaked which showed a 5.2 inch full HD display with thin bezel and powerful Snapdragon 800 processor with 2GB of RAM and 13MP rear camera.
The phone has volume rocker keys on the back below the camera perhaps because of the ultra thin body which makes side placement difficult. The speakers are on the bottom along with micro USB jack.
If rumor is to be believed, the Nexus 5 will be based on Optimus G2 but will come with Android 5.0 Key Lime Pie and will provide stock Android experience. It will be announced after the Optimus G2, on October 5th according to the rumor.
Source

Recently live pictures and specs of the upcoming Optimus G2 were leaked which showed a 5.2 inch full HD display with thin bezel and powerful Snapdragon 800 processor with 2GB of RAM and 13MP rear camera.

The phone has volume rocker keys on the back below the camera perhaps because of the ultra thin body which makes side placement difficult. The speakers are on the bottom along with micro USB jack.
If rumor is to be believed, the Nexus 5 will be based on Optimus G2 but will come with Android 5.0 Key Lime Pie and will provide stock Android experience. It will be announced after the Optimus G2, on October 5th according to the rumor.
Source