I would rather just have more ascended shards in general. The grind is ridiculously long at 100 per final chest, especially since the gear is already time gated through tickets. Add an ascended shard reward track that gives 100 per completion and bump up the final chest to 150-200. Alternatively, you could bump up pip rewards by 50-100% for the same effect. Still want a track though, and that would mean there is at least some way to earn ascended shards outside of ranked (but you would have to lower the gold to compensate, if they have a set amount of gold they want coming from PvP).