Found this article over on Tabletop Gaming News:
http://www.tabletopgamingnews.com/halo-fleet-battles-expands-the-halo-universe-from-console-to-tabletop/Some takeaways:
-this game is NOT going to be a Halo version of Firestorm Armada.
-it sounds as if fleet commanders will have the ability to re-form squadrons during battle; this is something I've always wished we could do in Firestorm Armada and Dystopian Wars.
-one of my ideas when I first heard of this game will actually be realized: there will fleet commanders and heroic characters available for each faction, which will change the way the fleets fight. This will increase the replayability of the game, I think.
-there will be a campaign (consisting of several scenarios) included in the starter set, designed to help players learn the basics of the game--much like "Operation Shadowhunter" for Dystopian Wars.
I've got my starter box pre-ordered through Gamer's Haven in Colorado Springs; as soon as it comes in, I'll be looking for an opponent to sit down and play through the scenarios with!
