Nexus 5
Nexus 5Screenshot from Google website

With Google confirming that it has not scrapped its Nexus series, speculations on the release date and features of the upcoming device, dubbed Nexus 6, has come to life again. Several reports have suggested that the phone may have several upgrades over its predecessor Nexus 5.

An executive from Google has rubbished reports that Nexus line would be killed to make way for a new product line called Android Silver. The fact is it is likely to be unveiled in October and come with several new features.

Here are five major upgrades Nexus 6 may have over its predecessor:

1) Processor: There are contradicting reports on the processor of Google's upcoming flagship smartphone with Taiwan's Economic Daily claiming that it will be powered by MediaTek 64-bit SoC, while G4Games reported that the device would be powered by either a "quad-core MT6732 64-bit chip that clocked at 1.5GHz, or the octa-core MT6752 SoC running at a frequency of 2.0GHz." Nothing is confirmed as of now but it looks like the new device will have processor superior to that of Nexus 5's Qualcomm MSM8974 Snapdragon 800.

2) Operating System: Nexus 5 run on Android v4.4 KitKat OS (upgradable to Android v4.4.4 KitKat), while its successor is expected to run on the new version Android L which will be released along with the device.

3) Display: Nexus 6 is expected to sport a 5.2-inch full HD curved LCD display protected by Corning Gorilla Glass, while its predecessor has a 4.95-inch display with 1080 x 1920 pixels (445 ppi pixel density).

4) Camera: Nexus 5 has an 8MP camera with 3264 x 2448 pixels, autofocus, optical image stabilization and LED flash, while its successor is expected to have either a 20MP camera with HDR mode or a 13MP main camera and a 5MP front snapper.

5) Memory: Google's flagship smartphone may come pack with 3GB RAM, an upgrade over Nexus 5's 2GB RAM.

Google has not officially announced the release date of its much-anticipated device but its VP Sundar Pichai had said at the Mobile World Congress 2014 (MWC 2014) that the device would be unveiled in October.

Rumors that Nexus series would make way for Android Silver took precedence with @evleaks adding fuel to the fire by tweeting "There is no Nexus 6. Farewell, Nexus" on its page.

However, Dave Burke, the head of Android engineering and the Nexus program at Google, put an end to all the rumors by telling ReadWrite in an interview that Google will unveil a new device belonging to Nexus series later this year, along with the new version Android L.