This is one of those "when your number's up" moments. However, the odds are probably on your side, unless things get significantly worse in the near future.
The biggest problem is that terrorism results in the closing of public spaces, massive security, and a very apprehensive attitude among your companions and even among the locals. It's a difficult question.
The really exciting thing is, that I'm going for 7+7 trip (7 days around Israel by bus, and then 7 days in Sharm).
That's going to be a challenge :-)))