Why is this taking so long?
The Administrative Procedure Act of 1946. Just think how long it took to get the original LSA/Sport Pilot rules written. Now they have to justify relaxing all the limits they previously said were necessary for safety -- a difficult task.
Hopefully soon.. I'm not sure what actually takes so long at the FAA...
As I said a month ago, "The Administrative Procedure Act of 1946". It's just not as simple as having some write some rules and then publishing them. If you're not familiar with the process, and the reasons this was done in the first place (primarily to prevent special interest from railroading regulation through agencies for their own benefit). You might want to read these: