At this point, I'm honestly surprised that the people working on this series aren't bored yet. It's still a big money make for Warner Bros. Interactive, so maybe Traveller's Tales has no choice.
I mean, look, I'll accept that these games are all decently put together titles, but from a creative perspective, it really does feel like a situation where the developer would be clamouring to make something new. Three of these games were released this year, all extremely similar - you can't tell me that wouldn't burn a person out on this type of game.