I don't see a reason for a separate repo, I think that would overcomplicate things: users expect the repo to be at mojohaus and pushing to central might be problematic due to the groupId.
The title of this message is misleading, you're offering help as maintainer but refer to a license-maven-plugin issue.
So I'll rephrase the title, change it into a vote and will give people the time to respond.
thanks,
Robert