EADS still maintains the project is on the 'revised' timeline. So EK should get three aircraft in 2007, October, November and December.
If this schedule slips and EK takes 346s, it all gets very interesting. I doubt even a tame regulator will allow 330/343/345/346 MFF.
So how will they split the fleets? All 340 types as one and 330 as another would make sense. But I pity the poor guys on this fleet.
330/343 as one and 345/6 as another would work too. No 345/6 simulator in Dubai though.
Either way the decision will not be based on logic, but the self interest of the managers involved in formulating it - naturally.