The 13 daily rewards. Are they only for extra xp or also for rewards in the end when you get loot ?
say one adventure is in 4 "stages" where the 4th is killing a boss. Will the daily rewards increase my gain after killing the boss or only for the quest stages before where i get xp ?
By daily rewards obviously you mean the "random" instant adventures.
From my experience, doing those, you just get an added bonus to exp, planarite, planar dust, etc types of loot at the end of each single IA.
Say you pick up the "complete 7 instant adventures" daily, you can learn via watching as it goes from 0/7, 1/7, 2/7, etc etc, how much a single IA is, actually.