Sorry, I wasn't very clear! What I meant was if they did put it on one of the flights it would have to be the late one due reasons above.
Yeah sorry, in summer there is only two departures after 19.30 to LHR at 20.10 and 21.10 while probably only only a handful of short haul A320's arriving back between 21.15 and 22.30, the rest are largely 23.30-01.30. More less empty during winter at EK times as well.
Believe evening service is best service for people transiting beyond DXB so would be most logical.