Egypt follows a Syrian style rejectionist policy
for the rest of the Cold War-
After Nasser dies, nobody else makes the unique contribution Sadat made in terms of the peace process.
Maybe in the early 80s there is a replay of the October War (which itself could be changed).
Egypt gets no US aid in that time. Israel gets aid, but less of it (as current levels date to the Camp David era).
Ironically, without a formal peace process, and without US aid to Egypt, Egyptian fundamentalists never start to blame the US for everything the Egyptian government does. Egyptian fundamentalists do fight hard at home, in Afghanistan and later in Chechnya though, as they've built up alot of animus towards the Soviet Union as backer of the Egyptian government, and that animus carries over to the Russian successor state.
Egyptians don't attack the WTC in 1993 or 2001.
That is unless of course the Soviet-backed Egyptian regime pulls a successful 'Hama' on the Egyptian Islamic Brothers like Asad did in Syria.
If Saddam's invasion of Kuwait is not butterflied away, Egypt may join the coalition against Iraq, for the same reasons Syria did in OTL. Neither like the US, but Cairo, Damascus and Baghdad all think they should be #1 and don't want to see any of the others aggrandize themselves.
Even if something like peace process talks happen in the 90s, they still may not divert Egyptian anti-regime elements against the US, because the US will not be offering a big aid package, at least well into the process. At worst, we're on target to get hit by Egyptian fundamentalists in 2010 or so.