Onifighter

If I understand correctly, from discussions I have seen in places like Global and Discord, the Re-roll will be random in nature, up to and including the task, rarity and reward involved.  Since that truly makes sense and is about the only way it could be made fair to all players, both old and new, lower levels to EoC, we could probably bank on how that is how it will be...
Although I understand Pardoux's position about there being a need for it, I do feel that it is necessary for those of us that get a totally insurmountable task, such as a lower level player getting a "kill X mounted creatures" (impossible below a certain level) or a PvP DQ when there are no "active" players in range whatsoever... or even an undesirable task, i.e. invent or breakdown several hundred items, or, in my case, damage a Titan   

In my case, are the PvP DQs (since I'm not into PvP) and the breakdown/inventing items because I'm lazy 

I personally don't see a need for a DQ reroll at all , but i'm hoping (given that they're implementing one) that it will be purely random - so, you "could" get one that's exactly the same, or you could get one vastly different...

The reroll will help in these situations that Penny and I said but doesn't solve the problem. Having a DQ with a big reward but not being able to complete it due to a situation the game doesn't offer can be frustrating. Reroll the DQ and new having the same requirement makes no sense, but for a player aiming for a higher rarity DQ, the reroll is a good bet. I think DQs could encourage other aspects of the game, like Composing or Scavenging. I don't know exactly how, but it's just an opinion. But I have high expectations when Reroll comes. 

I have to say that the Daily Quest reroll is very welcome. But I would like to know if there will be any rules about DQ's rarity or requirement. For example: my DQ requirement is breakdown items, If I reroll is there a chance it will be a breakdown DQ again or the new DQ will it necessarily have a different requirement (kill creatures/travel tiles)? If I have Common DQ, when reroll can the new DQ be Rare or Legendary or will it remain at the same rarity?

Speaking of DQ, I think it needs to be revised. In my opinion, the idea of DQ is to encourage the player to log in every day and play different aspects of the game.There are some DQs that are practically impossible to complete, like killing creatures of certain classifications for low level players or PvP DQs for high level players. There are also other Daily Quests with requirements and rewards that aren't worth the effort, such as Break down 80 items for +130 Current Stamina reward or Inventing dozens of items for low current Stamina.

Well, but that's a topic for another time. The reroll will help in these situations.