There are different kinds of the Muslim Brotherhood, and some of them are counted though have already left the group. Many of those who claim to abandon the Brotherhood, they belong to it and support its ideology more than its official members.
I couldn't wait to see the expected constitutional declaration and the new government. However, I found this declaration as a slap on the face because it tries to bring Egypt back to the Middle Ages. It was pretty much a Salafist declaration with a strong flavor of political Islamists who seek old fashioned regimes that don't fit today's life.
Though many people used to call the Muslim Brotherhood a "national faction", I have never considered them national or even Egyptians. I am not talking here about the former General Guide insulting Egypt and wishing for a Malaysian president for Egypt, which proves Islamism ideology that does not recognize homelands or borders. Thus, they are not national nor Egyptians.
Others
The Light of the Desert-Documentary on St Macarius Monastery, Egypt