April 13 2010 was the Oakmont release and virtual open start.
April 12, 2011 was the CCC sneak peek with the CTTH. The Open started in May.
April looks pretty strong, around the middle of the month. Then again, if you really want to be optimistic, with all the feet dragging WGT has been doing with the G20 release, maybe, just maybe, they intend to drop the whole package on the scene all at once. Like early. We're only talking 2-3 weeks. :-)