Had a play with one of these this afternoon at a trade show. Was impressive- pre's sounded clean with the gain cranked, no transformers in this one. Routing can pretty much be done anywhere to AES or analogue. Is only 48k, don't know of any plans to bring up the sample rate, 5s pre record buffer, loads of metadata options. Menus seem intuitive, still lots of knobs and analogue controls (gain knobs will arm tracks etc).
It's bigger and heavier than both the 788T and 552, but less hot than the 788T.
Apparently the first shipment to the UK's already been sold and they haven't even set a price yet...