But this is what I mean by having a mercenary faction. Scum is its own faction in X-Wing, but having mercenaries makes sense for Armada. Some of these scum factions have capitol ships. Sometimes they need to work together. Sometimes they aren't "scum", but still aren't on the level of the Empire, or even the Rebellion. A player could field just ships from the mercenary faction, or field some alongside the Empire or Rebels with restriction. Scum ships may be free to ally with either side, but CSA ships would only show up alongside Imperial ships. The Hapes Cluster ships could only show up alongside the Rebels. Of course, you could just be the weirdo with a CSA or Hapes only fleet, with some scum help.
A merc faction would be a balance nightmare. Every vessel would have to be balanced around every combination things from both rebels and Empire, and would therefore have a heavily constrained design space and not much room for uniqueness.
I doubt that? I'm basing this merc faction off the merc faction from Warmachine, which while I never played heavily, it was notable that certain normal factions often relied on the use of certain mercenary units and characters. It's doable, I'm sure.
I think it is more likely to see TFA and later movie/new EU ships in Resistance/New Order factions before we see anything like Scum and Mercs.
Well yeah, I don't think anyone here is saying otherwise, but speculation is part of playing a game with ongoing content releases....