The "Poly Relationship Corner" forum used to be called "New to Poly" and was changed fairly recently. See: http://www.polyamory.com/forum/showthread.php?t=19250
My guess is that the forum topics wouldn't be changed any time soon, unless something urgent happens. Olivier popped in here recently but I think that was the first time in over a year, and I am pretty sure that there is a list of changes still waiting for the next software update. If people want a big change, how I understand the process is someone starts a discussion about it in the "User Guidelines & Forum Features" section, people weigh in, and then the Moderators have a pow-wow. If there is enough consensus, it makes sense, and they feel it will benefit the community, then they send a request to Olivier, unless it is something minor that the Mods can take care of themselves. At least that is what the process looked like to me when we had a discussion about some other changes people wanted.