According to Hebrew Newspaper, Mercaz Hainyanim, the last active synagogue in Egypt was already ordered to be shut for the Rosh Hashana and Yom Kippur services by the new Islamic Egyptian government, before the latest terror incident, against the USA in Libya and Egypt.
However, there was a chance until the latest incident that an appeal to the Islamic regime with the help of diplomatic pressure might have changed their mind.
But now under the pretense of being insulted about an anti-Islam film that was initially attributed to an Israeli Jew, (but was probably made by a non-Jewish enemy of Islam, who had a motive for claiming a false Jewish identity), the decision is sealed against the synagogue.
The last part that I wrote about the true identity of the anti-Islam film maker is not from Mercaz Hainyanim, but from another news source.