Coming from a GamesIndustry interview with Warner Bros.' Olivier Wolff...

GI: LEGO is one of your biggest IPs, how have you maintained that success over so many titles?

Olivier Wolff: I think that it is a really interesting blend of IPs. At the core of it you've got LEGO and the sustained success of LEGO as a family franchise in so many parts of the world year after year. We've played with it as kids, as parents now, so there is that element behind it.

But in parallel to that you've got the fact that LEGO has brought into toys great IPs, and therefore we can express it in games, and with the encounter of great IPs expressed in toys, you've got the magic of TT which has a unique sense of humour. Without the humour of TT there wouldn't be great LEGO games.

What has been interesting is that we were always concerned about is there a ceiling to that? And the reality is that there's absolutely no fatigue at all and there is actually a demand for different experiences. And that humour element that I mentioned, and also the innovation. Now you've got Chima Online which is a fantastic experience - and that's really not competing at all with the console products but really bringing a different type of experience and reinforcing engagement with the franchise.

Full interview here
Link