Wireless certification and FCC filings spotted by tech blog The Verge
appear to indicate that graphics hardware manufacturer Nvidia is developed a tablet-sized successor to the Nvidia Shield mobile device, with two submissions identifying a rather conspicuously named "Nvidia Shield Tablet".
The Global Certification Forum (GCF) website has revealed the product name in a recent posting validating its wireless connectivity. In a related tweet, the GCF describes Nvidia’s new device as a "Notebook / Tablet," indicating that it’ll most likely come in a hybrid or convertible form. Given how much time and effort Nvidia has already invested in expanding the library of Android games compatible with the original Shield’s gamepad, it stands to reason that its successor would opt for hardware controls of some kind as well.
A hybird tablet with a larger screen and some manner of attached or detachable physical game controller would make sense as a Shield followup, and The Verge further speculates that such a device would likely be powered by Nvidia's much touted Tegra K1 chip which has recently been demonstrated with benchmarks specs that would be well suited to a tablet device, running Android 4.4 with a 7.9 inch screen, and a 2048x1536 display resolution.