The World’s End isn’t a send-up in any way, in fact, we’ve gone out of our way not to populate the film with references to other movies, in order to avoid that [parody] label.
The theme that will bind the three films together is not parody or even ice cream, it’s a preoccupation with the struggle of the individual against the collective. Shaun vs zombies, Angel vs the NWA, Gary King vs (???).
Thematically, it will all make sense when the three films can be viewed consecutively. This sounds lofty but they form a dialectic sequence, which I hope film students will write essays about.
Shaun of the Dead = evolution; Hot Fuzz = devolution; World’s End = revolution;