Why do people think University is next ?

Because the most vocal simmers have been demanding it for about a year now. I can't see university not being next at this point, especially when Grant is out here tweeting saying the fans are going to love the next EP. I couldn't imagine him saying that for a different EP knowing how much people have been demanding university.

The literal only other thing I could see the next EP being is a tropical vacation pack, only because it's rumored to come out in June. Otherwise, university seems to be the best bet.