Wouldn't this flight be nice? Let's just call it QF33/34 because I don't think that exists yet:
QF33 PER 16:25 - DXB 23:25 (11:00) A330
QF33 DXB 02:10 - TXL 06:40 (6:30) A330
QF34 TXL 23:25 - DXB 07:35 (6:10) A330
QF34 DXB 09:10 - PER 23:55 (10:45) A330
These flights would allow PER pax to connect with LHR QF services, and allow SYD and MEL pax to connect with the service to Berlin. As mentioned before, they can codeshare with EK who don't fly to Berlin, and also get feeder traffic from Berlin through airberlin, who don't fly to DXB (or Australia). Everyone wins! A possible issue is that EK already fly DXB-PER at similar times, but I guess that didn't stop QF on the DXB-SYD/MEL routes.
I would definitely use this service, and I know many others who would too. I really enjoyed using the QF5/6 to FRA and was on one of its last ever flights to FRA. The CSM said in his spiel at the end of the flight "We hope to see you again on a Qantas aircraft soon" - if they really meant this, why stop flying to Germany?! Not to mention, the flight was completely full.
Are you listening, QF??