New TrackMania out this year
Beta should kick off next month.
TrackMania developer Nadeo has told Eurogamer that the new TM compilation will be in the shops by the end of the year. Nadeo also revealed that a beta is scheduled to start some time around the end of August / start of September so they can try out all the new network features.
For those who missed yesterday's announcement, TrackMania United will feature all the previously released games and add-ons in the series. Lots of rather exciting new features are promised - you can read all about them on the official website.