Nvidia recently announced the Tegra X1, a brand new and powerful processor that comes to succeed last year's Tegra K1. As we already told you, the Tegra X1 seems to be the most advanced SoC for mobile applications ever made, though it's unlikely that we'll see it in too many mobile devices like tablets and smartphones. According to Fudzilla, one of the tablets that should be powered by the X1 will be Nvidia's own successor to the Shield Tablet (which was launched last year for prices starting at $299).
The new Shield Tablet could be announced on March 17, or earlier. There aren't any details regarding its features (besides the inclusion of the Tegra X1 chipset), but Nvidia might want to keep the 8-inch form factor of the original Shield - since this has proven to be quite successful. The original Shield already received its Android 5.0 Lollipop update, so it makes sense for the new one to ship with Lollipop on board.
The Tegra X1 processor comes with eight 64-bit CPU cores (4 Cortex-A57, and 4 Cortex-A53 cores), and a 256-core Maxwell GPU, which should make the upcoming Shield Tablet a beastly device. We'll bring more on this as soon as new info arrives.