Too much non-canon stuff ruins a game that has, as Star Trek does, a history that has taken years to lay down. It is one of the reasons why I HATE Starfleet Battles and Dispise that god awful Prime Directive! Vulcan Psionic Marines?!?!?!?! What the &%^#%$%^&^%%*& is that...HELLO, the Vulcans have been a peace loving race for centuries! They never had the ability to project their mental powers, and have strict rules governing there use. And don't tell me that "it's a differnt universe"...That makes all the worse...Its not Trek then is it?
And don't even get me started on the Lyrans, Hydrans and the worst of all the Kzinti???? (sp). I have heard the Man-Kzinti wars series is a good one, but it has no business in Trek.
Whoa, Rant mode off.
Now, I realize the universe is a VERY big place, and there should be a few new races pop up now and again. Case in point, the Taurhai, a great antaganist for the Romulans I also like the other minor races listed in Way of D'era...However, you are not going to see any of them wearing a Romulan uniform anytime soon.
Sure, add a few, very minor, new races as background. Don't tell me with all the major races in Trek you think we need more. If they make all the canon races that LUG has used in their Trek available in one volume, that Star Trek game would have more races then any other RPG out there. Bar none, that I can think of.