A roadmap is NOT a release data/schedule, it simple states what needs to be done and how much progress has been made. As for the sounds, Yes, I agree, it has been quite slow, I've made/found quite a few (probably over 30 or so by now). I think it would be awesome to see more people working on them. If you're interested in sounds, but don't know where to start, PM or message me (I'm freezway on freenode and hang around the #tremulous channel a lot), another person to contact would be khalsa, but I haven't seen her of late...