Google's Nexus 9 tablet (aka Volantis), which made headlines thanks to its rumoured HTC branding, could now be officially released sooner than expected, as per a newly surfaced report.

According to an official NVIDIA legal listing initially spotted by Bright Side of News and Droid Life, Nexus 9 will use the NVIDIA Tegra K1 next-gen mobile processor, and the tablet is now expected to be released as early as Q3 2014.

With HTC reportedly sending invites for a mystery event to be held on 8 October at New York city, USA, we could just see Google unveiling the Nexus 9 tablet in the event.

NVIDIA's legal filings (now seemingly taken down and available as a cache) confirm the existence of Nexus 9 and its HTC branding.

Also, the NVIDIA legal filing mentions the company's Tegra K1 mobile processors being used in Google's new Project Tango.

However, the technical specifications/hardware aspects of the next-gen HTC Nexus 9 are not revealed in the Nvidia legal filing.

But, according to earlier reports, HTC Nexus 9 (codenamed HTC Volantis), will incorporate a 9in display, and will be driven by the Nvidia Tegra K1 processor with 2GB RAM.

An 8MP rear camera and a 3MP front camera are expected to adorn the device.

Also, the possibility of HTC Nexus 9 running Google's recently unveiled Android L cannot be ruled out. If this aspect goes official, a Nexus 9 tablet with the latest Android iteration will likely grab attention of people across the world.

Nexus 9 is also expected to be sold commercially in two storage variants – 16GB and 32GB.

Google's earlier Nexus tablet, Nexus 7, was developed by Asus.

Currently, Google has not issued any official statement regarding the launch of its next-gen Nexus tablet.