ok, I see, there is finally some discussion about it, hehe
In my opinion it the rating system isnt balanced and fair like it is at the moment, and it wouldn't be the best solution to do a total reset. The best way is to keep everything as it was.
Why is there a reset after a season?
If you dont reset anything, you will see who is good in a scheme, and he deserves to win less points for winning his good scheme / losing more points for a loss.
The only problem with this system can be, that you have some very active player after ~3-6 months that has a lot of points and its kinda impossible to reach him in 1 month. Therefore you just should have to edit the playoff qualification. 50% of the overall top ranked players (just the ones who did enough games in the current month) and 50% of the best players in the current month.
It doesnt need to be 50% sure, but this system is in my opinion the fairest one I can think of.