My last thought on this ranking:
* players who are just active enough not to be removed will be stuck at 6,000 points (restart at 6,000 every Monday)
* average but active players will be stuck at +/- 35,000 points (7-day wins x 10 easy fights x 50 points = 3,500 points, loss on Monday - 3,500 points)
* the most powerful (without spending diamonds) will be blocked at +/- 70,000 points (gains of 7 days x 10 average fights x 100 points = 7,000 points, loss on Monday - 7,000 points - no difficult opponents for them since there are no difficult NPC and they are at the top of the leaderboard.
* the most powerful who will spend diamonds will be blocked at? I can imagine around 105,000 points (gains of 7 days x 15 average fights x 100 points = 10,500 points, loss on Monday - 10,500 points - no difficult opponents for them since there are no NPC difficile and they are at the top of the leaderboard.)
The points lost during defenses will not fundamentally change this result, after a certain time, the classification will be frozen.