Hey i'm new and had a question :-D
Yes, it’s true!
Your friend is likely wrong, though it may have some elements of truth to it. Anet has said Guild Halls are coming but they absolutely said nothing about any type of guild vs. guild rotations.
That’s wishful thinking on your friend’s part. Anet will be giving more information as they get closer to launch about how guilds will be handled in HoT.