Heard back from CDKeys, here’s what they had to say:
“This offer is for the base game only, and doesn’t come with bonus/extra content unless mentioned on our site. Also, we’re unable to guarantee early/beta access. If there are any updates, we’ll announce on our Facebook page.”
So, while I find it sort of surprising CA would have keys being sold that don’t include Norsca pre-launch, I have to sort of take this guy’s answer at face value and assume that’s the case since the website doesn’t mention it.