Giancarlo,
I don't see any reason why it should be possible to commit your work to the next release. If you don't have commit rights you can send me the work and I will commit your stuff. Regarding the master template my suggestion would be to allow switching by using the parameter "DefaultMaster" which is now set to "/packages/dotlrn/www/dotlrn-master".
It would be wonderful if your SCORM RTE implementation would be committed as well. Do you have any plans to support SCORM 2004 as well?
Greetings,
Nima