Google posted Android 5.1.1 Lollipop factory images for LG Nexus 4, LG Nexus 5, and the LTE variant of HTC Nexus 9. The latter is also getting the new firmware over-the-air.
HTC was recently reported to be working on an entry-level tablet and a prototype tablet even got the Bluetooth certification. The fact that the hardware is ready for certification suggests that the launch isn't far away.