Everyone's score is back to 0; ranking, fights etc. Season ends in around 3 months? So how about everyone who will/can participate on 3v3 queues up everyday (if they got the time ofc) right as it opens up until like say 3 hours after it since that's around when it starts dying (though now with scores reset we're all going to get spam fights).
Why? Well why not? Plus you also need those 200 total wins to get the unique reward and title from the chest. Also I'm going to assume everyone's aware that you cannot craft certain items till your score/ranking is at a certain point, so there's that too. One thing that I wonder, if the way they measure the winners will be based on whoever appears on the ranking npc 2.2k+ score then that might be a problem to get 2.2k score within 3 months depending players time/availability etc.