I tend to agree with Will about supporting new trucks, however, the aftermarket support HAS to be there. Honestly when someone asks me "Why not IFS?" I have to show them how they'll only get 2 inches of flex in the front while when I let it droop the coil spring pops out and the only thing left holding it together is my brake line. (dramatization)
That's not to say that TTB is great, I think honestly it's far from it. So as far as offroad use is concerned, I think there needs to be a lot more how-to as far as SAS on 98+. So the biggest thing in my view is modding new trucks, contributions from members, and aftermarket support.
Second thing I would work on would be the tech section as far as organizing it differently. I honestly don't really know what to suggest though. There is just SO much information, sometimes it's hard to find things, or things aren't where you'd first expect them. The tech section is great, though, and I have used it a lot over the last 5 or so years that I lurked here. Maybe a search feature or something would be cool.
Lastly I think we need some kind of land-use section. Could be a section about current & proposed laws regarding land use, problems, concerns, compliments, whatever. Lets face it, TRS is mostly offroad and we need to guard the little land we have left to wheel on closely. Another positive note of this would be that we are 100% stronger as a group when it comes to getting the word out about our sport.
That last bit is of course not intended to push out the street truck guys but since I do not fall into that category, I don't really know what to suggest as far as that goes. Hopefully my rambling here made some sense as I skipped over a couple pages.