Apparently the last victor of a war is getting a hefty bonus! Even more than they should be lately! SO if you want to press your luck, try holding out to be the last hit and you could be greatly rewarded! It does appear to be giving the loot, but don't bother sharing the coins more than once as they are linked to the same war will only be collectible one time!
Here is my record!
Note: I have also seen the 1st hit on a war get the same kind of result. So go First or Last, as long as it's not your own war it seems to give a bonus!