The Druid Q&A has been released, and Greg "Ghostcrawler" Street has answered questions on a variety of topics. For example, he says the team wants to improve the Balance spell rotation and they don't think Moonkins are "quite there yet" in terms of PvP; bears are not inferior tanks, and "it's possible their survivability is too high in 3.2"; and in the future, the team would love to give up shapeshifting costs completely so Druids aren't stuck in one form all the time, such as Tree of Life.
Ghostcrawler emphasizes numerous times in the Q&A that the team wants players to shift more. He also says the team has plans to update the art for additional forms, such as travel and aquatic, "at some point in the future."
You can discuss Ghostcrawler's answers in this thread in our Druid forum. The full Q&A can be found below.