Besides ShootMania and TM2 Stadium competitions taking place, there was also a brief segment where they talked to Hylis today.
It was mentioned that TM2 will be free for online play. Alinoa confirmed on the ManiaPlanet forums that it would be all three titles/environments. I don't know more details than that for now.
Hylis interviewed Stef, the organizer of the Planets Millions Cups and they played a brief one minute segment from a video I made a year ago. This was a nice surprise to me as I was watching the livestream!
Hylis also interviewed TMPurification, one of most well known TrackMania video makers, and they played an unreleased video of his that will be his entry for the IMC6 video competition. It was beautiful.
Last but not least, Hylis mentioned something about unlocking the editor and supporting blockmixing.
To read TMarc's translation of the event:
http://forum.maniaplanet.com/viewtopic.php?p=193151#p193151
To watch a recording of the event:
http://www.tm-tube.com/video/29081/PGW+2013%3A+10+Years+of+TrackMania
Obviously this isn't everything they're working on. Hylis said on the forums prior to the event that he didn't want to get into too much details, because it was more about inviting new players into TM than it was providing details about upcoming features. I'm sure there will be more news in the coming months. Exciting times for the TM community!