This is not an April fish, but Microsoft will launch SQL 2012 on April 1st
As reminder, SQL 2012 is now RTM and available for download to TechNet/MSDN subscribers as well as for evaluation at http://www.microsoft.com/sqlserver/en/us/get-sql-server/try-it.aspx
The virtual launch event will be host at http://www.sqlserverlaunch.com