Reaper's Rewards Event was unplayable, and I still think about it a year later

I've heard other players request converting past Reward Events as Scenarios, where players can earn the rewards. Perhaps once a Reward Event has passed it's one year mark, it becomes a Scenario for players to unlock rewards.

This would be great for new players to play old Challenge Events as Scenarios, such as the 2018 Positivity Challenge - yes, these posters can be found in debug, but it's more fun to play the challenge to unlock the rewards than to cheat to claim the prizes.