So far there's been a pattern of new IAP campaigns/free AO's being released every 6 months or so, and October is just around the corner. Hoping something new will be released in time for Halloween. I've been pleased with them all so far (pretty creative- even the free non-campaign AO's are fun to play), but I've played them to death and am itching for something new.
Hope Pharaoh sold enough to warrant continuing to expand.... or