Well, from the new pictures it seems an APS-C sensor indeed
For me the omision of flash is great, I preffer no flash than a useless flash; anyway, there is the 270EX which is pretty good and very pocketeable. I guess they will release an even smaller one for trhese cameras
If it does have a 3.5 shutter cable release and keeps the silent live view (I mainly shoot macro) I am in; it would be my second body for macro (first is 5D mkII) and would be the only camera I would take to the street when travelling
The only thing I fear is the sensor IQ is going to be well behind NEX cameras