Well, think of it like this: They are removing law from the game. This means that the Law you have now will have to be converted (likely to 1/4th) into Esoterics. That being said, we can deduce that the relic items currently purchasable with Law will be shifted to Eso at a reduced rate, as we have seen before. With that changing, I don't foresee them merging the quest overall quite yet, as better gear will be easily obtainable just by completing Midas, trading in the new Tomestones, and with Gobdip likely coming to a Rowena near you.