Believe it or not, some people want them to back off new content so they can get 'caught up'. Most of the development is building toward more content and diversity of modes within the game. Whether the level of new change matches your definition will get you into all kinds of conversation, which is exactly what the forums are for. :D Thanks for sticking with us for three years. We have come a VERY long way since launch (addition of guilds, raids, TB, TW, GA, chat, etc.). They know we still want a sandbox.... I encourage you to look through the specific feedback channels and add to those threads; the devs do look at these forums.
Feedback (LINK)