I haven't been able to find any more information than you already know about when we can expect an announcement. Canon has so many new products to announce, it will be a crazy next 12 weeks.
I've been told neither the 3D or 6D will have built in flashes. I don't think anyone would care either way.
Could be wrong.
New CMOS Factory
Canon's new CMOS factory was to be operational this month. Anyone know if it's up and running yet? None of the usual suspects seem to know.