Wrothgar Daily locations and current information:

The map above shows where to get each daily.  Currently both dailies may be shared.  When completing one daily, another person may pick up the daily which they would have gotten.  This means you can effectively farm all bosses and delves for the daily loot.

This may not be intended.  Farm at your own risk.

Thanks for the map.  =)  yeah, yesterday we did two boss dailies in the little group that I ran with.  Not sure of the intention of sharing those and being able to get them all in a day, but we will find out soon enough.