Very impressive spec sheet:
42mp FF sensor, 12 FPS and 8FPS with minimal EVF black out. 4K 100mbpsec video "full frame" and 1.8x crop super 35 mode. 79-point PD AF sensor, with 15 cross type in the center, the center AF point being down to f2.8 sensitive. PD AF system can work together with imaging sensor AF system.
Pricing about $3200.