Well, it was still under nominal Ottoman soverignity until WWI and, infact, before the war started Cairo paid the Porte(nevermind the fact that the porte wasn't the Ottoman seat-of-rule anymore) tribute.
So what would have happened? I am not sure the Empire will be rewarded with such a massive territory, but the alternative is having the Ottomans relinquish all that territory, even if nominally, and it doesn't make sense for a winning power to relinquish anything (I also don't think that any of the three Pashas would be willing to relinquish it). Will Muhammad Ali's dynasty recieve Autonomy under Ottoman rule or something with the British expelled?
discuss.