After initial set-backs the Greeks could easily take back Constantinople by Christmas 2013. This would, of course, wake Konstantinos XII Palaiologos from his 600-year-long sleep under the Galata Gate and the 'Golden Emperor' could be crowned King of all the Greeks and Emperor of Byzantium by Michaliolakis (by now Patriarch of Constantinople) in a special ceremony in the Hagia Sophia on Christmas Day.
Don't forget Trebizond. I want a reinstatement of the Great Komnenoi at the Imperial throne of All the East, Iberia and Perateia, including luxurious ceremony of coronation at Soumela's monastery. Did someone speak about Alternative History? This will be a reality in two years, at most.