Yes that's a tad "Blue sky" for a number of reasons.
I don't know that late A350s is one of them as would be a (relatively) simple matter to simply defer retirements and order more 777s.
What WILL limit growth is, as BCG states, pressure from foreign carriers to limit access to bi-lateral agreements.
Also, expecting operations to be in full-swing at DWC by 2016 is extremely wishful thinking. We are limited to about 220-250 aircraft while operating out of DXB, even IF other carriers get punted to DWC.
PLUS other regional players (QR, EY) are starting to be actual threats to growth, not just window-dressing for their prospective governments.
I think a more incremental growth to 300-350 aircraft over the next 10-15 years.
After that? Don't care, I'll be on my sail-boat somewhere.