Yes, we have been PROMISED to get the update of BE to full lay flat by June, 16th, 2011. Instead of that we have received canellations for every flight after Sep., 2nd until March, 2012. This route will be suspended Due to this suspension, the DL agents in FRA informed us about not having the T's or the 764's for the remainder of the operation in 2011.

There is a thread here in the DL board it's called "Berlin cancellation" and another thread about the BE updates TATL. Much more details are given there.

On a side note: I really, really hope I am wrong and you can enjoy lay flat. But according to the SEAT MAP (not the "amenities" display), this is not an updated plane. There is information in the BE update thread on how to judge from the look of the seat map on what kind of plane you're flying. Good luck to you!