If done well, this could be a nice boost for anyone still paying attention. Since we don't get PNs in loot at all but all loot has Trade value, all it would take is for the game to calculate the value of the loot gained and if the total value goes above some threshold - say 5,000 PNs in value - the game could send out a global message about it.
But it would be a change that won't happen for a long time since there is a lot of other work that has to take priority.
