^Good questions, bro.
Would the movement resist imperialism through information (newspapers, books, lectures, internet, etc)? Or through political participation (lobbying politicians, donating to favorable political groups), or through military means, or a combo of the above?
Active participation in the information battle would be a must in any case.
The same can be said of political participation: though such an organization could start as a numerically limited avant-garde, it will have to participate in national politics, but with a focus on foreign policy and regional questions, since these will be seen as a pre-condition for any type of sustainable domestic development.
The question then is more what type of political participation. If it manages the transition between restricted elite and mass movement succesfully, like Hezbollah in Lebanon, it can then envisage participation in elections etc, as long as this is deemed strategically beneficial to the movement.
In the meantime, it could either function like a classical political party, or an informal grassroots movement practicing "street politics", or a political lobby group . Personally, I find the latter idea very interesting.
The issue of armed resistance is another complex one. The organization should avoid entering armed conflict against the Arab regimes. As concerns the zionist and NATO occupiers, all options should be considered, but I have no definitive answer. It will depend on many other criteria. The first priority for such an organization would be its survival untill it has gained enough clout.
Would it have a hierarchy (president, cabinet, etc), or would it be voluntary participation (flat distributed power)? You called it decentralized, so I guess it would have distributed power.
But then you suggested a revolutionary elite, which would make it centralized, as I understand it.
I was mainly referring to decentralization at the international level, ie the organization should consist of autonomous national branches (Tunisian, Egyptian, Libyan, Yemeni, Jordanian, etc); but also retain consistency as an overarching entity. Like the MB and its various national branches, which have their own programs focusing on their respective countries, but are linked and support each other nonetheless.
On the national level, each branch can itself be a centralized organization with a well-defined hierarchy. I evoked the notion of a revolutionary elite after brother the8march suggested that creating a mass movement from scratch based on these ideals might prove unrealistic.
So, it sounds like a NGO that would replace the al-Ikhwan, but then this movement could sell out also, or have some members that sell out, and so also lose legitamacy.
That would be theoretically possible. But since Iran would help co-engineer this organization, and since its whole purpose would be to resist imperialism, this will contribute to keeping it on the right path.
How would it get started? Who is the new Hasan al-Bannah that could initiate it?
Well, lack of competent leadership seems to be a weakness of current social movements in the Arab world. Also, it could be argued that the diffuse nature of these movements isn't particularly prone to accomodating the classic role of political leaders.
So it will most probably have to start not without leaders, but with leaders whose role in the rise of the organization is reduced compared to the past.
A good starting point for such an organization could be the Islamic Awakening conference regularly held in Tehran since more than a year. The conference now has a permanent bureau.