The usual, "Swap around reward table and do no other change" event. And of COURSE time gate anything that has a chance of being remotely interesting. How about giving a huge list of actual tasks that a person can burn through in a day or take their time. Getting a person to do activities they normally wouldn't. Just off the top of my head.
  • Reach maximum level on a job
  • Do fates in Y zone.
  • Complete an extreme trial
  • Win triple triad matches.
  • Visit lookout points.
  • Complete S-Rank Hunts
  • Do 12 custom deliveries.
  • Compete in PVP activities.

But no, as usual anything remotely worth doing will be time gated and the standards so boring they not worth doing.