[X] From within! Citing untold numbers of strongmen before, change must be accepted and controlled as much as possible.
[X] From the military! The usefulness of el-Sisi is over, and now strength must shepherd Egypt anew.
There isn't a single 'revolution' that has succeeded without the consent of either the military or elements within the regime itself. That holds pretty true for Egypt too. From the masses & workers are interesting options because it can easily be tipped into one of those 'people's' dictatorships.
I suppose we could also go full democratic, but where's the fun in that when that's what everyone else is doing? Triggering an authoritarian wave in MENA would weaken our democratic neighbors and let Egypt carve out its own sphere of influence. I can even see the motto - something like from Marrakesh to Mashhad, all under Cairo.