There are new rumours about a S1X, which sounds a little bit like a S1, S1R sand S1H merged into one S1X:
It's now months I see going around this "S1X" rumor. It keeps coming back and forth and I decided to post it now. While I wish this is true...I am highly doubtful it is :) Rumored Panasonic S1X specs: 49Mp BSI Live MOS sensor: no low pass, high resolution, optimized edge incidence efficiency...
www.l-rumors.com
The leak would fit in the timeframe since the registration of a new high-end body a month ago and a release within the next month or two. And also an unknown all black Lumix body, much like the S5IIx, appeared in the last Lumix us live stream, what also could hint to a S1X.
However, while I basically think Panasonic is likely to merge the three models in to one, the leaked specifications seems to good to be true:
"49Mp BSI Live MOS sensor: no low pass, high resolution, optimized edge incidence efficiency,
20fps mechanical shutter continuous shooting, 60fps AE/AF , omnidirectional phase focus
full frame 8.5K 3: 2 48fps / 8.2K 16:9 60fps video
S35 5.1K 4:3 72fps / 5.6K 17:9 90fps / 5.4K 2.4:1 120fps video recording
native ISO, 50/225/1000, up to 17 stops of dynamic range"