Guess there are a few scenarios likely.
Utter chaos, and getting rid of Mubarak. That could lead to spreading utter chaos indeed.
El Baradei gaining the upper hand, but, he doesn't speak to the masses, so, not likely.
The muslim party gaining control, but, since they did not start it, and lots of Egyptians would not be happy with it, that will hopefully not happen either.
And then, Mubarak staying in power, and after months of chaos, people being OK with that. Somehow I think the latter will happen. And that will only make his power bigger.