The Darwin schedule will look like this:
AUH 0235 - 0635 DUS 0845 - 0905 LCY 0930 - 1155 DUS
DUS 1705 - 1730 LCY 1755 - 2015 DUS 2105 - 0635 AUH
The outbound flight to AUH would be, under the current schedule, on airberlin metal which certainly would not impress the LCY clientele.
The first arrival into DUS will connect with very little, just like the afternoon departure to LCY.
One further development could be that airberlin axes its STN flights now that Darwin serves CBG. The Q400 could then replace the Eastern S20 on a code-shared AB/BA DUS service.