I'm not saying we are guaranteed to be pleasantly surprised, only that it's possible. I can say for sure though that there will always be people that like what comes, and people that don't like what comes. Depends on what we get.
If I had to make a prediction, I'd say what we have now is the base of the cake, and they're still working on the rest. We may see some quests, possibly repeatable, and other things to do as well, not to mention the true SB relic. I wouldn't count on gathering though.