Legion Timewalking is this week and the weekly quest only appears to award an LFR item level cache.
Normally, the Timewalking Caches are Normal item level, not LFR item level.
The Blizzard Blog announcing Legion Timewalking this week unfortunately doesn't help as it currently mentions «Normal Vault of the Incarnates».
Prime your minds for a fel-tangled chrono-spatial conundrum and more in this week’s Bonus Event.Players will be able to adventure into six of Legion’s dungeons to reap new rewards all week during this week’s Bonus Event. Your character and items will be scaled down to a power level fitting for the challenge at hand, but bosses will yield loot appropriate for your regular level.
Timewalking dungeons also have a chance to drop items that usually drop when you run them on Heroic difficulty, and you’ll earn reputation with a faction that is interested in the dungeon.
While the Event is Active
Look for the following all week long:
- Kazra in Valdrakken has a quest for you. Or, if you forget to pick it up there, you can start it within the Adventure Guide (Shift-J).
Quest Requirement: Complete 5 Timewalking dungeons. - Rewards: Cache of Vault Treasures containing one piece of non-tier gear from Normal Vault of the Incarnates.
While Timewalking is active, you will gain a 50% bonus to reputations earned from quests and creature kills for all reputations associated with the corresponding expansion.
Simply open the Group Finder (default hotkey: I) and then select Dungeon Finder and Timewalking in the Type dropdown menu.
Read more on wowhead.com