Normally about an 08:00 arrival vs 00:00 currently and departures about 16:00 vs 07:00, so I think that flight would be much more attractive for Dubai bound passengers, as well as for some connections that require a 9+ hour wait at DXB the way flights are now
If you are doing business in the UAE, you can get a good nights kip in business class and save a night's hotel costs with an evening departure from the UK.