I'm hoping for Gungans. Everyone loves Gungans! Blasters love Gungans, vibroblades love Gungans, concussion missiles love Gungans, lightsabers love Gungans...

That being said, I'd like to see the Echani, Zabrak, Besalisk, and Jawas. And I'd be very interested to see a talent tree or two devoted to hunt saboteurs.

Herglics, Zeltrons, Geonoshians for species/races. There are others but I think they are slated for Force and Destiny.

Investigator for specializations.

I really want more upgrades for weapons, armor, and vehicles. There aren't even rules for a bayonet yet. There's no way to add maneuvering thrusters to a starship, or an improved suspension to a car/walker.