The latest PlayStation Blog post also gives us an indication of more DLC to come in the future. Focusing on costumes for now, there are going to be several price tiers which content can fall into. Special occasion costumes will be free, but only available for a certain time, while community designed costumes will be free of charge and remain on the Store to be downloaded at any time. Paid-for content will be made available with full costumes at $0.99 and "premium" costumes (like the Solid Snake and Sephiroth ones) costing $1.99 each.
There will also be rare content, which could be available for any length of time and for any price, as well as bundles for the paid-for content. Phew. LittleBigPlanet's going to cost us a lot of money in the long run isn't it? Especially when you consider the closing line of the PlayStation Blog post, which states "Stay tuned in a few weeks when we introduce a few more types of LBP DLC that will not only enhance your SackBoy, but expand your Pop-it tool with more objects, materials, stickers, sounds, music and even gameplay enhancements to keep the community refreshed with more creative options." Yes please!
Check out the post for yourselves for examples of future DLC.