This would bring the add-ons quicker up-to-date after a release, thus helping all customers to get add-on updates more quickly.
I saw that you kind of pre-released the RM to the guys at XFShowcase. This made it possible to release add-ons for the RM early. But only by those developers who administer XFShowcase. I think all other developers should get this chance as well.
Last, but not least such pre-releases will benefit to all your customers.