What Meeting Stones do in Forever
Developers say the stones still sit outside dungeons, but instead of summoning party members they open a new Looking for Group interface. Players can list or discover groups for activities, then communicate and assemble the party manually.
What they do not do
Why Blizzard is keeping travel time
The developers specifically framed the travel and gathering period as social downtime: time for players to talk before spending the next 30–40 minutes together in a dungeon.