Sad thing is, that's exactly where we are - the optimistic option is to assume they'd have trouble lacing their own shoes in the morning, rather than think they're willfully stringing people along to milk the subs.
Hate to say it, but that is exactly what they've been doing the last 12 months. Add on another 6 or so months for the "post launch" comment from beta. They could have made all completely new companions 2 for each class and it wouldn't have taken 18 months to develop this content. The only goal I can see from the little they did say was to keep people playing (and paying) as long as possible.