I don't think there will be an e-ink device presented next week and I'm not pessimistic. Tablets are coming and everybody knows that.
There are some news about a hybrid e-ink/lcd touchscreen tablet device being in development at Amazon but no other e-ink devices planned atm for the future. I would be very surprised if they'd announce a new e-reader (and I mean e-ink reader) on Sep 28
Be a little realistic.