I have not seen anything about reports about Macaroon just not out-right working on the live servers. Perhaps describe your problem in more detail in the comments section of Macaroon on this website.
However, this is my mage UI in Cata beta using Macaroon -
So I can assure you that Macaroon with circular bars will continue at the very least when WoW 4.0 goes live. WoW 4.0.1 (what is on the PTR, not the beta) may go live this Tuesday or on a Tuesday soon after that as a prelude to the Cataclysm Expansion launch. So you will need to update to the Cataclysm version of Macaroon then anyhow.
Again, you can post on the comments section of Macaroon about your issue in more details if you wish.