Assuming catalog numbers go in order of release and the new Dark Tranquillity is #648, then Triptykon, the new Tom G. Warrior group, must be #649, since it is being released on March 22nd. I've found that labels usually announce release dates of albums no later than eight weeks prior to the release date. Albums are almost always released on Tuesdays. 4/1/10 is a Thursday and I doubt Nevermore is going to be the band that breaks with tradition, unless they have a thing for kicking off the Holy Days of Easter. The following Tuesday would be April 6th. All of Century Media's 2010 releases appear to be released on an every other week schedule, according to the label's website. In light of the above, it would appear that The Obsidian Conspiracy will be released on 4/6/10, assuming that it really is catalog #650. If this is the case, an official announcment should be made within the next two to three weeks.