Thanks everyone for the input. Given the recent developments we decided to rebook everything and go to Mykonos instead of Cairo on this portion of the trip. Though, I'm going to remain hopeful and hang on to the Egyptian pounds I bought for a trip in the future.

Though, even up until yesterday the hotel (Fairmont Nile city) was telling me that it is safe and all the tourist sites were functioning as normal... The hotels must be getting clobbered.