There's a new group of pre-orders available over on the Spartan Games website. There's a tourney kit. There's some deluxe flight token sets. But what most people are probably going to be interested in (if I had to take a guess), would be the OmniDyne and their new box sets.
Getting them out of the way quick, there's new deluxe tokens for your Halo: Fleet Battles games. If you'd like to upgrade from the little, cardboard ones to actual miniatures, now you can.
Then there's the OmniDyne who join the Marauders of the Rift. They've got four new box sets, giving you fleets of different sizes you can join in with, as well as different options of ships.