Reports said that search engine giant Google is already working on the successor of the popular LG Nexus 4.

Google has been releasing Nexus smartphones and tablets over the years. Since it was launched, the Nexus line has included handsets from HTC, Samsung, and LG. However, it seems Google may be using the recently-acquired Motorola for its next phone.

Wall Street Journal quoted unnamed sources that a new device is on its way from Google-owned Motorola. These people say Motorola engineers are hard at work on a "sophisticated" handset codenamed 'X phone.'

However, it is still unsure whether the device will be a Nexus-brand phone; but reports claimed that it will definitely not be a Droid handset.

Though features were not detailed by The Wall Street Journal's sources, Motorola's Dennis Woodside apparently wants a team that will do something that differs from current approaches. Woodside says he's investing in the team and technology necessary to do just that.

Apparently, the smartphone is due out next year, and while CES might be a touch too soon to hope for any news, there is a possibility that we will hear something about this phone at Mobile World Congress in February of 2013.

Google is currently struggling to meet demand for its recently-announced Nexus 4 smartphone. Manufactured by LG, the device's low price means it has seen extremely high demand, and Google has had issues keeping the phone in stock.

Capitalizing on this popularity could be one of the reasons why Google is already working on another smartphone.

The Google-LG Nexus 4 boasts a 4.7 inch screen display with 1280x768 resolution, 1.5GHz Snapdragon S4 Pro quad-core processor, 8 MP camera and 2100 mAh battery.

The LG Nexus 4 also has WiFi 802.11 b/g/n, NFC Android Beam, Bluetooth, 2100 mAh Lithium polymer battery, Microphone, Accelerometer, Ambient light, Compass, Gyroscope, Barometer and GPS.

The new Google-LG smartphone will run with the new Android 4.2 Jelly Bean, which promises new features upgrade such as better camera options and controls. This has become the selling point of the device.

Google has not yet released an official comment on this issue.