#3 - April 15, 2016, 9:33 p.m.
Yes! One of our major design goals for the endgame of Legion is getting players out into the world with friends to do activities.
A few things help accomplish this:
1) Everyone in your entire region will see the same World Quests. Invite your cross-server friends, you can all do the same activities!*
2) Similarly, everyone will see the same loot (or a fallback). If a world boss spawns and is going to drop a mount this week, everyone will see (on the World Quest UI) the mount.**
*Some World Quests may be gated behind personal quest progression (e.g. Suramar), though.
**There will still be random, rare toys/mounts/pets from a variety of activities, this is simply a philosophy for World Quests.
We want to make it easy and fun to coordinate an adventure with your friends, no matter where they are in the world, and what item level they're at.