I don't think it's such a bad idea to have an optional Elimination round for the top 16 of the season after a season, like the "Champions League" of JDC. The first 16 qualify, and the winner is the "JDCE champion", while the winner of the regulary season still remains the winner of the regulary season. That'd add some nice action for the end of a season and certainly ensure some nice matchups of duels of top players. This would be additionally interesting for spectators. I'd highly approve of that, it's like a finale furioso for the season!