From the LEGO Ideas blog:
"When you visit various LEGO fan sites and Facebook pages over the next month, there’s a good chance you will run into our “Creative Ideas Wanted” campaign. Kicking off on the 26th December and continuing until the end of January, the aim of the campaign is to encourage people to take up the challenge of designing a model that could become the next LEGO product.
Of course we already have many great ideas – over 5,000 active right now – but we’d love to have even more."
"Many of your submissions are based on classic movies and TV series. We want to see more original creations such as the Exo-Suit, Birds and the soon-to-be-launched Maze; product ideas that start from scratch and that aren’t based on existing properties.
We hope you will join us in this campaign to encourage LEGO fans to take a look at LEGO Ideas."
It's interesting to see the site merely "encouraging" more fresh and original ideas rather than outright banning license-themed ones. This sounds like a good idea to me, though!