I think it's a decision that involves a lot of work, if it will be taken into consideration (and, quoting at first, I'd like) I think it be a slow process.
First of all they should standardize the process of creating scripts (surely the team tinycore would do a great job, but it is meticulous work).
Secondly, what makes AUR so great is the management system:
Being able to search for packages with different criteria, look at the script, comment, vote ... is how to create a second comunity internal to the main.
I think the packager in addition to having an advantage they also have fun!
But all that I could wait as the subject of a major new release, because it is really hard.