Five months have passed since the last league addition to an old multiplayer (The Great Escape).
But still there are a lot of multis that need a league system.
Maybe they can be added as a more hardcoded way:
-Split the current leaderboard in probable leagues: 30 players on legend, 100 on gold, etc..
-Pick up bosses on these cuts
-Validate bosses by resubmitting them.
-Create all leagues bosses at the same time, and hardcode promote players to each league.
This is faster than having to wait N weeks, and takes little CPU usage.
Bonus track: Maybe add another league above legend for games with 100+ players in legend? Smaller leagues reduce submit time, and takes less server usage