New Adobe Release Candidate adds support for the A7-A7r-RX10 and 28-70mm FE lens.
Adobe just added the support for the new A7-A7r and RX10 cameras. And there are also new lens profiles for the 20mm f/2.8 E-mount and 28-70mm FE lenses. Download them here:
Adobe Lightroom 5.3
Adobe Camera Raw 8.3 for CC
Adobe Camera Raw 8.3 for CS6
Now it will be nice to hear your comments about the A7-A7r RAW files converted in Lightroom. Let the testing begin!
UPDATE: SAR reader Nekton did run Imaging Resource RAW images thru Lightroom 5.3:
A7: ISO 6400 f/8 1/1600 https://dl.dropboxusercontent.com/u/4096871/AA7hSLI06400NR0.jpg
D600: ISO 6400 f/8 1/1250 https://dl.dropboxusercontent.com/u/4096871/D600hSLI06400NR0.jpg