The B&N press conference is due to start in about 5 minutes, and I happened across a covered display. Underneath the drape was display units for the new ereader. The above image is a dummy in a case for the new ereader. I'd guess that it is based on a 6" E-ink screen, and the lack of buttons suggests that this must be a touch only unit.
That's all I know so far.
Update: VP of Sales from Neonode is here, which means this will have the same touch screen tech as the Kobo Touch and new Sony Readers.