In today’s Q&A by SimGuruHydra, it is stated that after the release of the “Future Themed” Expansion this fall, all content created for The Sims 3 will be released to The Sims 3 Store.
Q: Are you still developing content for The Sims 3?
A: Yes. We have a brand new world, Dragon Valley, coming out at the end of May. We have The Sims 3 Island Paradise shipping on June 25 and we have a Future-themed expansion arriving in Fall 2013. Beyond that, we continue to create content for The Sims 3 Store.