The FAQ's for Chaos Space Marines are obsolete, and were up on the GW site for what seemed like weeks after the new codex release. Finally in the last few days they were removed, and it is highly expected throughout the community that it means we will be seeing a new FAQ soon. Friday perhaps?
Personally on this end, I do not think it necessarily means that, after all because they were obsolete, I think they were left up for this long by mistake. So taking them down to me just means that someone finally was able to, or get around to, taking them down.
Are they just around the corner? I hope so, it would be great to see them. Just do not get carried away yet, there are no rumors right now that the faqs are going to be updated in the next day or so.