The most recent update I saw on the forum noted that the League and Imperial fleets were currently in development. I'm hoping that the Symbiots won't be too far behind either of those. (Or some of the minor independent factions out in the Lost Worlds, for that matter.)
Perhaps the setting might have a higher profile once FASA 2.0 get around to publishing their planned revision of the original Noble Armada ruleset. At least, it might open a new market for Mongoose's ACtA:NA miniature line. Starline 2500 minis are available to players of SFB, FC, and/or Starmada, even if they don't necessarily play ACtA:SF; since the new FASA seem to be leaving the mini side of things to Mongoose (when it comes to ships, at least), the current Noble Armada miniature range will be available to players of both games.