Through the end of the day on Monday, it’s a fine time to venture into Draenor dungeons, as this week’s Bonus Event rewards you with reputations gains when you defeat dungeon enemies on Heroic and Mythic difficulties.
Make sure to pick up the event-only quest Emissary of War in your Garrison before you head out. It rewards an Iron Fleet Treasure Chest (containing one Hellfire Citadel Heroic quality item) that you won’t want to pass up.