Here some more information on the revamped boxes: They confirmed both include Dual SATA , 4x USB Host ports (2x USB2 front and 2x USB3 side) connectors plus the latest generation BT and Wi-Fi.
But there is no USB3c port like on X20. I am also missing an upgrade of the supplied PSU's to 12V 4A as the the new units support Dual SATA HDD (including powering those).
Look here for the detailed specifications and first pictures:
http://forum.zidoo.tv/index.php?threads/z9s-and-z10-with-detailed-specifications-and-many-pictures.10955/
This site did not allow me to include the PDF attachments directly as they appear to be too big.
Specifically the Z10 looks nice with 2x USB on the front too. The Z9S is a bit crowded with connectors on all sides except the front.
Update: I see the sales pages got enhanced with these pictures too.

Added Side and Back views Z10.