A new race would be quite an exciting development.
Maybe as a thought they could introduce new technology into PE. I have to say the Beamer Weapon Technology Skill does bug me as we haven't seen any Beamer Weapons yet
Perhaps the storyline can involved the aliens using this as their main weapon technology and it cuts through current armour technology like butter. They are tall warriors by human standards, standing seven feet tall, and are able to carry heavy weapons directly into combat.
The defensive capability is also substantial, with shielded armour systems which is great against laser and plasma but is less so with blp and hand to hand weapons. Their offensive packages also incorporates advanced teleportation technology allowing them to bypass the gun towers of forts and towns. Causing devastation amongst the ill equip populace.
Hmm getting carried away now with the idea