I'm lost, lol, but I'll throw out a couple of suggestions, just in case I am not quite as lost as I think I are.
1) The history of all multiplayer games ever played on Warzone is stored in the WZ servers.
It's more than theory to suggest that the entire history of the Ladder system could be re-scored by any system that Fizzer input into Warzone, (without loss of old trophies).
2) In case I missed something, (like server load over the next three months), would a one-time catch-up fix be worth advocating for?