Just my opinion, here, but I think we're going to lose a LOT of folks who are going to want to weigh in on Carsland if we shove everyone off into another forum out of the regular Disneyland forum. It may seem more organized, but a first time visitor is going to go to the Disneyland section and, not seeing anything, might just go to another site. It's also a pain to have to go to yet another forum to keep an eye on what is being discussed in the resort as a whole.
Personally, I'd like ALL of the Disneyland resort content to be in the same area rather than scattered around in different forums. I would think Micechat would be expecting quite a bit of traffic over the next few weeks, and isolating these new comers in a new forum doesn't seem like the best idea, providing that they can even find it. The Disneyland forum is easily the most popular forum, and will probably remain so right through the Carsland opening. If the DCA tracker thread and other DCA related content remain over there, so should Carsland. It's just more confusion to deal with and more of a pain in the butt to have to switch forums to see what is going on.
Again, just my opinion.