Like many others I'm sick of the round of hospital, firefighters and police sets. Especially the police. Lego City is like an Orwellian nightmare.
Instead, I'd like to see a school and maybe a university campus. I like the idea of offices and would like it of these could be modelled on some of the interesting architecture that is happening around the world now - such as the Swiss Re building or Shard of Glass in London or some of the buildings that are going up in Dubai and the Far East.
I like the idea of more housing as well. I think there could be a real opportunity for Lego if they produced a range of eco-houses using wood effect for the outside, roof gardens and maybe solar panels. Along those lines, what about a small pack of large wind turbines as well?