I've just booked a trip to Germany in June with DB's €99 1st class London-Spezial fare. Had my eye on these for a long time so pleased to finally have found availability, and an excuse to book one!

I seem to remember reading somewhere (probably here) that the ICE3 panoramic/lounge seats behind the driver's cab can be reserved. I paid for a reservation on the ICE3-operated Brussels-Cologne leg and it has assigned some random seats in car 28, but there isn't a way to select specific seats online.

Can I call DB and get the seat reservation changed to the "lounge" seats at the front?

Links:
ICE3 seat plan from seat61.com
ICE3 driver's cab panorama showing the lounge seats