Will HP ever come back?
Seriously, though, it had little to do with "gloom" (for crying out loud, they released a Joker/Tumbler Batman set last year), and everything to do with poor sales. They hooked the union of the set of LEGO fans and Harry Potter fans. That's a mighty small set. It includes me, so I'm disappointed. But how many times can they make a new Hogwarts or Hogwarts Express set? I guess they figured no one would be interested in fourth reincarnations of them.
Now, personally, I could give them some great ideas for sets, IMO (The Burrow, for one), but it ain't gonna happen.
The most annoying thing, though, is the excuses. "Well... they just didn't sell that well" makes a lot more sense to any rational person than "The movies are getting too serious." When they release an Indiana Jones set of the "Fight on the Flying Wing," you know, the one where the mechanic gets chopped to bits and we see blood splatter all over the plane, and the "Darth Vader's Transformation," you know, the one where the hideously burned and deformed and missing limbed Anakin gets transformed, after dragging his grotesque body out of lava, burned beyond recognition, into pure evil, I simply don't buy "too scary" or "gloomy."
I guess I just feel like my intelligence is being insulted when they try to tell me that crap.