Answer
The season finale for ghost hunters was on 2 weeks ago. there will be no more new episodes until the next season starts, which scifi.com does not list at this time. here is the link to the video from the season finale, revelations.
http://video.scifi.com/player/?id=184200
there is the spin-off starting in january, "ghost hunters international."
http://www.scifi.com/ghi/
