It has been a trial run to try out different routes and possible framework components. It is not production ready, it isn't even test ready.
As of the beginning of the year, Fuel development has been taken over by our main sponsor, and the decision has been made to not radically break, but attempt to make a smooth transition for all changes required.
First step is on the way, which is moving everything to composer and composers autoloader, and convert the classes to PSR4. Development will also start using gitflow. You will find the latest developments in the "develop" branch of the different v1 repo's.