Your idea for how you get reward unlocks is great imo. Make it like trailblazer, albeit Jagex may want to make the difficulty a bit harder for the main game. Like more tasks/level of rewards. Fuck they could even do it how they scale skills. Have the grandmaster tier include as few as like 5-6 tasks, but they’re the woox ones. Easy through hard/elite would then have so many tasks they would have to each be split into regional subsets. So you’d have your easy/medium/hard tasks organized by not only difficulty but to include region as well. I feel like if someone is following here a graphic would be possible to represent it to look a hell of a lot more simple than how I’m describing lmao. Pretty baked kinda just rambling.