That is a fair chance to have better records they have now and do such a lot better now but is kind of bad for the people who has a high ranking because all that hard work will be gone so you could have a second chance to have a higher ranking than they have now so it is a bad and good thing for some of the people. Also, if your at worlds and lets say you get 4th place at worlds will that be on your new rankings or it will be deleted. Since they are reseting the rankings I will believe that they will put the stats you got from worlds.