Could you implement a different way from Arena of Darkness to earn Nero Coin since they are mandatory to progress in Engineering crafting ?
At this stage, the only way to earn this currency seems to be AoD, and reaward in this PvP event are very rare when you are a newcomer player. Indeed, it is impossible for a newcomer to earn any reward in AoD when facing experienced player full stuff. This issue will discourage newcomer player to participate to AoD event since their participation is only to make experienced player stronger ...
It might be interessant to implement some kind of leagues in PvP part of the game mabe based on player gear, number of victories, and so on.
Another way might be to reward participation in PvP events with a minimal reward (maybe conditioned by activity in the event to prevent from "alt-boting")
Whatever, PvP in AoD is very frustrating for the moment.
Regards,