From Nathaera:
This is good news.Update: In order to implement our first Connected Realms, Boulderfist and Bloodscalp will be taken down for an extended maintenance beginning Wednesday, September 25, at 3:00 a.m. PDT until approximately 11:00 a.m. PDT. During this time these realms will be unavailable for play. Additional realm connections are planned for the near future, and we’ll be posting a full list at WorldofWarcraft.com as soon as we’ve finalized the details.
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We wanted to update everyone on the next steps for the implementation of Connected Realms. We plan to begin the rollout of this feature with just a couple of realms, and have determined that the first realms that will be connected will be Boulderfist and Bloodscalp—we’ll provide another update once we’ve finalized the date. Beyond that, we are in the process of determining a complete realm-connection schedule, and will be releasing more details as we progress.
For more information on Connected Realms, please read the preview blog post here.