I got these small info from a reliable source:
1, they have no plans to bring the new menu design (from a6500) to the current a7 line but would be using it on newer models
2, current e mount flashes can not fire the af beam (on the flash) when another flash is being controlled wirelessly. This is a limitation of the current implementation and is currently impossible to fix.
Readers should really follow our RSS feed, follow us on Facebook and Twitter if they don’t want to miss the Sony April news. And if you heard “something” about the new camera contact me at email@example.com or use the contact form you see on the right top of this site. Thanks!