Depends on your main and on the other ninjas you own currently.

If you own Darui, for example, going in lightning treasure as soon as we get a good rebate for it could be a good option for you.

Roshi, Sailor Sakura, Han lineup will stand up with no real problems until we get seven swordman treasure that grants you a good lineup to use Azure Fang in the damage dealing version instead of in the healing version if you own mifune.

But for GNW treasure, the point is if you are able or not to aim for Naruto Kurama or Madara. If you think you'll be able to gather 1000 scrolls for that time then you could even bet on it, but i'm not sure we will get that treasure within next 6 months.