All that is fine and dandy, except that these scenarios would come mostly from the Order-centric late SP campaign perspective. The Nomads' own perspective, their actual goals as well as the reasons they push them are quite uncertain with pretty much speculations and assumptions existing from the opposite side. Building long-term scenarios regarding them is very likely not going to work. I do have my own thoughts and what they would do, building from what little there is of their own perspective rather than human, but being a bastard I am I'll keep them to myself mostly. :-)
Don't forget that Freelancer, original one that is, although terribly stereotypical it did try to avoid the blatant "black and white" separation. The factions are pursuing their interests, clashing in fights, conflicts of territories and those interests, but none holier than the other one, just only in their own self-presentation and propaganda. Same applies to the rest of them as furthermore evidenced by the leftover backstory for the Nomads. It wasn't about "good guys vs bad guys" as some of you would think it was or even expect it be, a sense mostly carried from other games and entertainment media where it's a norm. It ain't your typical Lord of the Rings kind of thing with clear separation to good and evil characters. Here things are blurry, here are shades of gray. Edges between good and bad morale are smoothed and it's not always possible to determine from an outside which is taking place, or perhaps it is both at the same time. It ain't that easy and trying to simplifying it by bringing to the "black and white" level does not help the whole thing, in fact only making it less interesting and more obvious, overly polished and devoid of details.