Hmm. After thinking about it, I really really like the corporation concept for technology trees. Especially since the most badass of technologies would require joint 'ownership' of multiple corporations by either the Rebels or Imperials. I take it that one corporation = one planet (for example, Kuat for Kuat Drive Yards, Geonosis for the Trade Federation technologies, etc)? Or would you have to own multiple planets for full corporate ownership of one particular company? However, I think that you should heavily put incentives to keep each faction in their proper 'places.' Rebels commanding Sovereign Star Destroyers and Imperials relying extensively on 20+ year old Clone Wars technology would be too painful to bear. Therefore, I think that just as in the current vanilla concept of EaW where each planet has a decisive advantage or disadvantage depending on who owns it, your mod should strongly reward or punish each faction for following a particular technology tree. The Empire should naturally profit from owning the traditional Sienar and Kuat shipyards. The Rebels should inherently be better off following the INCOM (sp?) line of corporations. This would still leave open the possibility for Clone Wars fetishists to pursue that technology if they would want to, for example, but it would be a harder path for them. The point should be to allow all of these extravegent options, but still to keep the factions basically as we know them by incentive, rather than by force.