Module 4 released today, but I haven't actally looked at any of the new content yet. I did however log in to invoke and update my professions. Since the Zen store icon was flashing, I had a quick look at that as well.
Two of the newest items: buy instant completion for the Sharandar and Dread Ring campaigns for five thousand Zen each.
I really shouldn't be surprised, as it's perfectly in line with their theme of letting people pay for every advantage possible. Somehow I still find it disappointing however.