Will Autodesk release more information on Revit LT (formerly Project Spark) at the upcoming ‘Lead the Way’ event?  BIMnova thinks so:

It is likely that later this month for the virtual event Autodesk Lead the Way , to be presented this year’s version for different Autodesk product families. That’s when you know new version brings Revit 2013 and hopefully will include more information about Revit LT.

Google Translate of BIMnova post

The event is 22 days away – it is scheduled for 29 March 2012.