I'm excited about this idea. Back when Eve was new, there were interesting chrons showing just how much intercourse there was between the empires (I can't think of the name offhand, but there was one with a Gallentean trader on an Amarr station that I especially liked). This is something that you don't see so much of, anymore, in the RP community. There's a lot of pure-faction-support RP, and a decent amount of outlaw RP, but there isn't as much in-faction-yet-cross-allegiance RP anymore. I'm totally guilty of this, myself - it's much easier to get basic conflict RP if you sit in a faction camp and glare at the folks in the defined opposite factions, so I've let Shin drift into that sort of thing.
I like how this could draw in all sorts of other RP: There are built in hooks for the traditional faction RPers, for outlaws, for pure industry/trade RPers, for sympathetic outsiders, for organizations like SOE, etc.