All,
I've been thinking about this since the early days of Mach III, when I was still the GM... I believe the best chance for an RP game to function and fulfill its promise is to change the medium in which it occurs. Instead of these disperate, senseless AARs of all types that are mostly unrelated to one another and rarely get written (for example, in three Machiavelli games I have posted a total of two...), we ought to come up with a basic story-line. A set of characters that interact according to personal relationships and motivations-such as competing branches of the Illuminati, a travelling court (from, let's say, Mars), a mercenary company, whatever. And a pre-history explaining their and the world situation, and continue in novel-form.
The Free Company, with a much larger group over a much longer period of time, remained fresh and active because each individual's post "hooked" the other. You kept writing because the last guy presented an oppurtunity that interested you, that involved your character or lay the foundation for a bigger storyline. And also because, putting it simply, fictional narrative is easier to write (though harder to write well) than historical.
Granted, while playing the game this is a bit trickier... But certainly not impossible. We can use A. An AoR or AoC, B. An historical scenario with random leaders and monarchs, C. An historical scenario, D. A specially made scenario or E. A more focused scenario-an AoM, for example, or an NA. Played more slowly with running RP.
Similiarly, we can just divide the two-in game you play with only a vague commitment to the storyline, sorting it out in the text. The RP aspect comes in the writing.
In order to do this, we'd need at least 12 dedicated player-writers, a story master (who need not be the GM as well) and a backstory. But I think it'd provide a lot of entertaining options... The Free Company's adventures took place over the course of about forty years, with flash backs, over six books. Its estimated story content comes to 2 million words-around twenty full length novels. All we have to do is A. Reduce the game time, at, say, 6:1 or B. Increase the life spans of the characters.
Thoughts?