WoW Forever Plans Australian Hosting, but Overseas Groups Can Raise Your Ping
Australian hosting is Blizzard's plan for Oceanic players, not a promise of local ping in every group. Here is how US friends and the shared Auction House fit.
WoW Forever plans Australian hosting for Oceanic players, but that does not promise local ping in every group. Blizzard says OCE players will mostly use Australian data centers while keeping the option to play with US friends. Joining a group based far away can change where your session is hosted.
This is launch-planning information from Blizzard's September 17 developer answers, not a newly announced Oceanic server opening. The important distinction is local infrastructure versus a traditional, isolated OCE realm.
Australian hosting without a separate OCE market
Forever replaces individual realm selection with rulesets. Blizzard says geographical regions still exist; removing the realm list does not mean every player connects to one physical server location.
For Oceanic players, Australian data centers are the stated plan for most sessions. That is more useful than assuming the realmless design forces everyone onto a permanent US connection. It is still a description of intended hosting, not a measurement of launch-day performance.
The Auction House is a separate part of the arrangement. Oceanic players share the same ruleset-wide market with US players. Local hosting does not mean an Australia-only trading pool, and sharing the market does not mean both groups always connect to the same data center.

Two groups, two different latency expectations
With mostly Oceanic friends, local hosting is the sensible expectation to plan around. Do not turn that into a guaranteed ping figure: your connection and the service's actual behavior still matter.
With mostly US friends, expect the possibility of a different connection. Blizzard says playing with people in a distant geographical location may connect you to their local data center. The system tries to select a location that makes sense for the players together in an area.
The explanation works in the other direction too. Blizzard's example has a player in California joining Australian friends and probably connecting to their data center. It is not a rule that the party leader always determines hosting, or a published formula for every mixed group.
The practical trade-off is that you can keep playing together without everyone keeping their usual latency. If responsive combat is your priority, look for Oceanic-focused groups and discuss geography before the session. That is practical planning, not a guarantee that a group label controls routing.
Check these details before committing your group
Agree on faction and ruleset before character creation. Local hosting does not remove Forever's grouping requirements, so Australian and US friends still need compatible characters to play together.
Do not assume the server explanation settles day/night timing. These developer answers do not confirm a local Oceanic world clock, exact manual hosting controls, or a maximum latency. The question specifically mentions Sydney, but the response describes Australian data centers more generally; that does not establish a complete list of hosting cities.
For launch, plan around Australian hosting being Blizzard's stated intention and overseas grouping potentially changing your connection. Judge actual latency once you can test it. The announcement supports playing locally and keeping US friends; it does not promise that both experiences will feel identical.