I personally wouldn't care if the stats got reset or not, but I voted No for the poll. I don't see why we should outdate the current stats, put them in a new, static, leaderboard, just for basically a free (possibly unwanted) stat reset along with a few new numbers to look at.
As new statistic would be cool to see, I don't see the practical need for them, for most people really only care for the amount of wins and amount of games they have. Also, with this basically resetting everyone stats, people that have tons of wins, good ratios, or just like to see their past games, wouldn't want this to happen. The people I see wanting this are the people that either want their stats reset for free or want to see a new face for the #1 spot.
If we were going to change the leaderboards in some way, I'd say allow the people that want a stat reset a discount for one, like 50% off or something. That way it satisfies both the people that want a better ratio and those that want to keep their current stats. Also, implementing daily/weekly/monthly leaderboards would also help in this. For that way people can still tryhard for wins to be the top of said leaderboard, while also building towards their old record of wins. (Since they are now trying to win one of the new boards, that could possibly help improve their overall ratio as well.)
That's my two sense on the matter, might add more if I feel the need to.