As a user, is anything going to change? I don't want to need to know about whatever this is. Everything already works fine. Are you planning on breaking it?
is Allan McRae still in the team? If so, he would break it. But if not I assume that everything will work seamlessly, bar unfortunate situation.
> Everything already works fine.
No, Archlinux was repeatedly behind with package updates. This even went as far as lagging behind Ubuntu in at least one instance, causing inconvenience and frustration for users which then either had to use other more up-to-date sources for dependencies or package the newer version of dependencies under a different installroot themselves.
This problem is caused by a staff shortage or the average necessary maintanance effort for repo packages. At least one of those 2 causes has to be solved.