Sony Santa Monica is, without a doubt, the best developer Sony has. Not only that, but they are quality checkers too. They're practically adutiors for Sony's games. Santa Monica is involved with just about every Sony game making sure it's up to quality standards and it has some of the most talented people in the industry.
Plus Santa Monica is one of the wealthiest studios that Sony owns and I think we can only expect better DLC. I think we will see higher profile DLC characters like Final Fantasy and Crash or Spyro.
Time will tell.