There is no touchscreen TV (what a ridiculous notion!) that's rumored. But I agree: just like Lion, the new ATV UI is an esthetic and functional step backwards. Sadly, as the months and years of the post-Steve era pass by, the Apple stuff we have will steadily diverge from the Apple stuff we liked. His ethos is gone, and Apple's feel is now in the hands of an operations guy. When Jony Ive leaves, it'll all be over.
There have been numerous rumors of a touchscreen TV (mildly ridiculous that any MR member hasn't seen them). However, I agree that it's backwards movement. The new interface is several steps BEHIND the ROKU, which I find to be very functional, but not very clever in the way of design.