What would it take for you to like field content it you don’t currently like it?

[Shurrikhan]

Was any sort of reward structure announced for the content? While there are the references to reward, there's no hint what was intended.

Literally anything. Extrinsic rewards are arbitrary. There's nothing to say that Field Content must progress Relics or Relics must be progressed through Field Content, etc. Stick onto it whatever rewards provides breadth enough to see casual/passing and longterm/invested interest.

Give it some tomes, exp, and gil, for instance. Heck, you could automatically convert the rewards if/when they'd overcap (exp -> weekly tomes -> 2k tomes -> poetics -> gil). Or even have it drop a form of unique currency that can be turned into any of the above. It does not matter.

As for the more intrinsic, sure, give it a Leaderboard. Maybe even give it tiers.

What matters most to me, though, is just that the content is fun and at least doesn't feel like a significant reward-loss (relative to other content).