It is getting more certain with each day that passes that Nvidia is about to release a Shield Tablet and it will be based on the new Tegra K1-soc. If you look at the website from the Global Certification Forum, there is an entry that has just been approved and that device is listed as the Shield Tablet. The Shield Tablet also was mentioned in Nvidia's own TegraZone website for a brief moment.
The Global Certification Forum certifies devices for 3g and 4g. Specs for an unreleased device called the NVIDIA Mocha were also leaked by online benchmark results in May.
