I get the impression that CodaTrek is intentionally steering away from forcing players to take flaws or packaged disadvantages for their characters. Some species abiliities are double-edged swords (like Ferocity), but few or none are unrewarded negatives built in for the sake of "play balance" or in fulfillment of a stereotype of the species. I also haven't felt it necessary to buy Flaws for any character I've created yet solely for the sake of being able to buy an Edge...Flaws seem much more voluntary, if-the-character-warrants-it things than in IconTrek.
I expect, then, that forced species disadvantages are going to be uncommon in future expansions as well. Certainly, the gamer species writeups posted here so far seem to follow that philosophy.
(Of course, NDAs notwithstanding, if anybody with a hand in the design wants to comment on that impression, feel free.)
It is by caffeine alone I set my mind in motion. It is by the juice of java that thoughts acquire speed, the hands acquire shaking, the shaking becomes a warning. It is by caffeine alone I set my mind in motion.
--Mentat Coffee Mantra