EK is normally pretty much focused on generating greater yield before adding frequency (just have to look at the development of MAN to see why). I honestly believe that they will do what the did with MAN- it will be A380 and 77W before having a 3rd flight; the only problem in my scenario is that I'm led to believe that no A380s have been delivered in the config they plan to use.... i.e. no 1st class, just business and economy. That means possibly adding 150 seats each way so delaying a 3rd flight even further.