I've gone through some Deviantart accounts tied to FFG and through Cardgamesdb for Clone Wars related images and posted them below. Obviously we can't account for new art but this should give us some ideas of what might be coming this coming year.
Obi-Wan
Clone Troopers, the art of the T-21 Repeating Blaster makes me suspect that will be one of the Phase 1 Clone's heavy weapon options. As for the mortar team, if Phase 2s get that it seems like it would be a heavy option that needs to be recovered but allows for shooting across the board.
Jedi. Not tons to say here, I suspect we will get lots of Jedi Commander options, though the Jedi Temple Guards might be an option for Special Forces, likely filling a similar role to that of the Royal Guards though with a force talent slot.
Gungans. The Electropole could be a heavy weapon option, as could the Gungan with the shield, maybe the first helps protect from melee pierce while the other helps protect from ranged pierce? Might be interesting if FFG did a 'Native' wave for Legion with the Rebels getting Ewoks, Imperials getting Nohgri, the Republic getting Gungans and the Separatists getting Geonosians.
Count Dooku
Greivous
Ventruss
Maul
Battle Droids, really interested to see how they will capture the feel of B1s, be it by having larger than normal squads or if FFG will just make them dirt cheap points wise and then expect players to pick up tons of the expansions to run them. Droid Commandos will likely be a Special Forces option.
Destroyer Droid
Magnaguard
Separatist Medical Droid, I had been wondering what they could use for the CIS's medical personal slot whenever the Republic and CIS get their personnel wave and this could work.
Separatist vehicles
CIS Operatives
Force Upgrades. In the event that Force Jump wasn't just built into the unit card I guess they could add it as an upgrade but would be very situational on the map setup. Force Rend, not sure how they might implement it but it sure doesn't look comfortable to be put through. Force Heal would perhaps be interesting but perhaps would be best as a single use like emergency stims.
Others. Not sure about the V-1 Thermal Detonator and how that might be implemented and the Runaway Boomas would likely not be added or just part of some Gungan artillery if that was added. The EMP grenades I see being packed with Clones as a way to interfere with droids and possibly vehicles.