Why do people think University is next ?

As mentioned above, it seems to be wishful thinking. It's seemingly the most highly demanded EP right now, so simmers are assuming that means it must be next. It's the same with witches - a lot of simmers want them, so they assumed that was going to be the last GP. Then Strangerville happened. Now it's started again. Personally I'm not particularly interested in University (and I would rather have werewolves). I'm just hoping for a nice surprise and that whatever packs we get, they'll be something in each of them that most simmers can enjoy.