Hi Jose Luis.
About the roadmap, the one in the website is outdated, we know this is confusing and we need to change it, but we are hands full with the development and that has been left out. Right now there is no public roadmap to show, we are trying to close some features as fast as we can so we can release the first stable version with installers. This should happen in the nearby future.
About the statistics, in the released appliance they are deactivated. Why? We calculated these statistics on the fly, and it has been proved not a efficient approach. We are rewriting the statistics calculations right now, and it should be in the master branch of the repository soon. There is an interface in the teacher course administration to browse these stats. It uses this library for visualization:
http://nvd3.org/
There is plenty room for improvement there, any contribution will be most appreciated. So if you keep an eye on the repository you will see in the next days a commit reactivating the statistics, you can try them then.
Regards.